Medication reference

Norethindrone Acetate and Ethinyl Estradiol and Ferrous Fumarate

Norethindrone Acetate and Ethinyl Estradiol and Ferrous Fumarate. INDICATIONS AND USAGE Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets are indicated for the prevention of pregnancy i

Norethindrone Acetate and Ethinyl Estradiol and Ferrous Fumarate

Boxed warning

Cigarette smoking increases the risk of serious cardiovascular side effects from oral contraceptive use. This risk increases with age and with heavy smoking (15 or more cigarettes per day) and is quite marked in women over 35 years of age. Women who use oral contraceptives are strongly advised not to smoke. Cigarette smoking increases the risk of serious cardiovascular side effects from oral contraceptive use. This risk increases with age and with heavy smoking (15 or more cigarettes per day) and is quite marked in women over 35 years of age. Women who use oral contraceptives are strongly advised not to smoke. Cigarette smoking increases the risk of serious cardiovascular side effects from oral contraceptive use. This risk increases with age and with heavy smoking (15 or more cigarettes per day) and is quite marked in women over 35 years of age. Women who use oral contraceptives are strongly advised not to smoke.

Brand names

JUNEL FE 28 DAYNORETHINDRONE ACETATE AND ETHINYL ESTRADIOL AND FERROUS FUMARATEJunel Fe 28 DayJunel Fe 1.5/30TaytullaFinzalaNorethindrone Acetate and Ethinyl Estradiol and Ferrous FumarateAurovela 24 FeTARINA 24 FEnorethindrone acetate and ethinyl estradiol and ferrous fumarateGemmilyHAILEY Fe 1/20Junel Fe 1/20OSHIHAurovela Fe 1/20Hailey Fe 1.5/30Hailey 24 FeCharlotte 24Fe

Indications

INDICATIONS AND USAGE Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets are indicated for the prevention of pregnancy in women who elect to use combined oral contraceptives as a method of contraception. Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets are indicated for the treatment of moderate acne vulgaris in females, ≥ 15 years of age, who have no known contraindications to combined oral contraceptive therapy, desire oral contraception, have achieved menarche, and are unresponsive to topical anti-acne medications. Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets should be used for the treatment of acne only if the patient desires a combined oral contraceptive for birth control and plans to stay on it for at least 6 months. Combined oral contraceptives are highly effective for pregnancy prevention. Table 2 lists the typical accidental pregnancy rates for users of combination oral contraceptives and other methods of contraception. The efficacy of these contraceptive methods, except sterilization, depends upon the reliability with which they are used. Correct and consistent use of methods can result in lower failure rates. Table 2. Percentage of Women Experiencing an Unintended Pregnancy During the First Year of Typical Use and the First Year of Perfect Use of Contraception and the Percentage Continuing Use at the End of the First Year. United States. Emergency Contraceptives Pills: Treatment initiated within 72 hours after unprotected intercourse reduces the risk of pregnancy by at least 75%. è Lactational Amenorrhea Method: LAM is a highly effective, temporary method of contraception. ð Source: Trussell J, The Essentials of Contraception. In Hatcher RA, Trussell J, Stewart F, Cates W, Stweart GK, Kowel D, Guest F, Contraceptive Technology : Seventeenth Revised Edition. New York NY: Irvington Publishers, 1998. % of Women Experiencing an Unintended Pregnancy within the First Year of Use % of Women Continuing Use at One Year ‡ Method (1) Typical Use * (2) Perfect Use † (3) (4) Chance § 85 85 Spermicides ¶ 26 6 40 Periodic Abstinence 25 63 Calendar 9 Ovulation Method 3 Symptothermal #Þ 2 Post-ovulation 1 Cap ß Parous Women 40 26 42 Nulliparous Women 20 9 56 Sponge Parous Women 40 20 42 Nulliparous Women 20 9 56 Diaphragm ß 20 6 56 Withdrawal 19 4 Condom à Female (Reality ® ) 21 5 56 Male 14 3 61 Pill 5 71 Progestin only 0.5 Combined 0.1 IUD Progesterone T 2.0 1.5 81 Copper T380A 0.8 0.6 78 LNG 20 0.1 0.1 81 Depo-Provera ® 0.3 0.3 70 Norplant ® and Norplant-2 ® 0.05 0.05 88 Female Sterilization 0.5 0.5 100 Male Sterilization 0.15 0.10 100 ‡ Among couples attempting to avoid pregnancy, the percentage who continue to use a method for 1 year. * Among typical couples who initiate use of a method (not necessarily for the first time), the percentage who experience an accidental pregnancy during the first year if they do not stop use for any other reason. † Among couples who initiate use of a method (not necessarily for the first time) and who use it perfectly (both consistently and correctly), the percentage who experience an accidental pregnancy during the first year if they do not stop use for any other reason. § The percentages becoming pregnant in columns (2) and (3) are based on data from populations where contraception is not used and from women who cease using contraception in order to become pregnant. Among such populations, about 89% become pregnant within one year. This estimate was lowered slightly (to 85%) to represent the percent who would become pregnant within one year among women now relying on reversible methods of contraception if they abandoned contraception altogether. ¶ Foams, creams, gels, vaginal suppositories, and vaginal film. #Þ Cervical mucus (ovulation) method supplemented by calendar in the pre-ovulatory and basal body temperature in the post-ovulatory phases. ß With spermicidal cream or jelly. à Without spermicides. è The treatment schedule is one dose within 72 hours after unprotected intercourse, and a second dose 12 hours after the first dose. The Food and Drug Administration has declared the following brands of combined oral contraceptives to be safe and effective for emergency contraception: Ovral (1 dose is 2 white pills), Alesse ® (1 dose is 5 pink pills), Nordette ® or Levlen ® (1 dose is 4 light-orange pills), Lo/Ovral ® (1 dose is 4 white pills), Triphasil ® or Tri-Levlen ® (1 dose is 4 yellow pills). ð However, to maintain effective protection against pregnancy, another method of contraception must be used as soon as menstruation resumes, the frequency or duration of breastfeeds is reduced, bottle feeds are introduced, or the baby reaches 6 months of age. Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets were evaluated for the treatment of acne vulgaris in two randomized, double-blind, placebo-controlled, multicenter, Phase 3, six (28-day) cycle studies. A total of 296 patients received norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets and 295 received placebo. Mean age at enrollment for both groups was 24 years. At six months each study demonstrated a statistically significant difference between norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets and placebo for mean change from baseline in lesion counts (see Table 3 and Figure 2). Each study also demonstrated overall treatment success in the investigator’s global evaluation. Patients with severe androgen excess were not studied. Table 3. Acne Vulgaris Indication Pooled Data 376-403 and 376-404 Observed Means at Six Months and at Baseline*Intent To Treat Population Norethindrone Acetate and Ethinyl Estradiol Tablets and Ferrous Fumarate Tablets N=296 Placebo N=295 Difference in Counts Between Norethindrone Acetate and Ethinyl Estradiol Tablets and Ferrous Fumarate Tablets and Placebo at Six Months (95% CI) † Number of Lesions Counts % reduction Counts % reduction INFLAMMATORY LESIONS Baseline Mean 29 29 Six Month Mean 14 52% 17 41% 3 (±2) NON-INFLAMMATORY LESIONS Baseline Mean 44 43 Six Month Mean 27 38% 32 25% 5 (±3.5) TOTAL LESIONS Baseline Mean 74 72 Six Month Mean 42 43% 49 32% 7 (±5) *Numbers rounded to nearest integer † Limits for 95% Confidence Interval; not adjusted for baseline differences Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets users who started with about 74 acne lesions had about 42 lesions after 6 months of treatment. Placebo users who started with about 72 acne lesions had about 49 lesions after the same duration of treatment. Figure 2. Mean Percent Reduction in Total Lesion Counts From Baseline to Each 28-Day Cycle and Mean Total Lesion Counts at Each Cycle Following Administration of Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets and Placebo (Statistically significant differences were not found in both studies individually until cycle 6) Figure 2. Mean Percent Reduction in Total Lesion Counts From Baseline to Each 28-Day Cycle and Mean Total Lesion Counts at Each Cycle Following Administration of Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets and Placebo (Statistically significant differences were not found in both studies individually until cycle 6)

Dosage

DOSAGE AND ADMINISTRATION The tablet dispenser has been designed to make oral contraceptive dosing as easy and as convenient as possible. The tablets are arranged in either three or four rows of seven tablets each, with the days of the week appearing on the tablet dispenser above the first row of tablets. Note: Each tablet dispenser has been preprinted with the days of the week, starting with Sunday, to facilitate a Sunday-Start regimen. Six different day label strips have been provided with the Detailed Patient & Brief Summary Patient Package Insert in order to accommodate a Day-1 Start regimen. If the patient is using the Day-1 Start regimen, she should place the self-adhesive day label strip that corresponds to her starting day over the preprinted days. Important: The patient should be instructed to use an additional method of protection until after the first week of administration in the initial cycle when utilizing the Sunday-Start regimen. The possibility of ovulation and conception prior to initiation of use should be considered. Dosage and Administration for 21-Day Dosage Regimen To achieve maximum contraceptive effectiveness, Junel 21 must be taken exactly as directed and at intervals not exceeding 24 hours. Junel 21 provides the patient with a convenient tablet schedule of “3 weeks on - 1 week off”. Two dosage regimens are described, one of which may be more convenient or suitable than the other for an individual patient. For the initial cycle of therapy, the patient begins her tablets according to the Day-1 Start or Sunday-Start regimen. With either regimen, the patient takes one tablet daily for 21 consecutive days followed by one week of no tablets. A. Sunday-Start Regimen: The patient begins taking tablets from the top row on the first Sunday after menstrual flow begins. When menstrual flow begins on Sunday, the first tablet is taken on the same day. The last tablet in the dispenser will then be taken on a Saturday, followed by no tablets for a week (7 days). For all subsequent cycles, the patient then begins a new 21-tablet regimen on the eighth day, Sunday, after taking her last tablet. Following this regimen, of 21 days on - 7 days off, the patient will start all subsequent cycles on a Sunday. B. Day-1 Regimen: The first day of menstrual flow is Day 1. The patient places the self-adhesive day label strip that corresponds to her starting day over the preprinted days on the tablet dispenser. She starts taking one tablet daily, beginning with the first tablet in the top row. The patient completes her 21-tablet regimen when she has taken the last tablet in the tablet dispenser. She will then take no tablets for a week (7 days). For all subsequent cycles, the patient begins a new 21-tablet regimen on the eighth day after taking her last tablet, again starting with the first tablet in the top row after placing the appropriate day label strip over the preprinted days on the tablet dispenser. Following this regimen of 21 days on - 7 days off, the patient will start all subsequent cycles on the same day of the week as the first course. Likewise, the interval of no tablets will always start on the same day of the week. Tablets should be taken regularly with a meal or at bedtime. It should be stressed that efficacy of medication depends on strict adherence to the dosage schedule. Special Notes on Administration Menstruation usually begins two or three days, but may begin as late as the fourth or fifth day, after discontinuing medication. If spotting occurs while on the usual regimen of one tablet daily, the patient should continue medication without interruption. If the patient forgets to take one or more tablets, the following is suggested: One tablet is missed take tablet as soon as remembered take next tablet at the regular time Two consecutive tablets are missed (week 1 or week 2) take two tablets as soon as remembered take two tablets the next day use another birth control method for seven days following the missed tablets Two consecutive tablets are missed (week 3) Sunday-Start Regimen: take one tablet daily until Sunday discard remaining tablets start new pack of tablets immediately (Sunday) use another birth control method for seven days following the missed tablets Day-1 Start Regimen: discard remaining tablets start new pack of tablets that same day use another birth control method for seven days following the missed tablets Three (or more) consecutive tablets are missed Sunday-Start Regimen: take one tablet daily until Sunday discard remaining tablets start new pack of tablets immediately (Sunday) use another birth control method for seven days following the missed tablets Day-1 Start Regimen: discard remaining tablets start new pack of tablets that same day use another birth control method for seven days following the missed tablets The possibility of ovulation occurring increases with each successive day that scheduled tablets are missed. While there is little likelihood of ovulation occurring if only one tablet is missed, the possibility of spotting or bleeding is increased. This is particularly likely to occur if two or more consecutive tablets are missed. In the rare case of bleeding which resembles menstruation, the patient should be advised to discontinue medication and then begin taking tablets from a new tablet dispenser on the next Sunday or the first day (Day 1), depending on her regimen. Persistent bleeding which is not controlled by this method indicates the need for reexamination of the patient, at which time nonfunctional causes should be considered. Dosage and Administration for 28-Day Dosage Regimen To achieve maximum contraceptive effectiveness, Junel Fe should be taken exactly as directed and at intervals not exceeding 24 hours. Junel Fe provides a continuous administration regimen consisting of 21 light yellow or pink tablets of Junel and 7 brown non-hormone containing tablets of ferrous fumarate. The ferrous fumarate tablets are present to facilitate ease of drug administration via a 28-day regimen and do not serve any therapeutic purpose. There is no need for the patient to count days between cycles because there are no “off-tablet days.” A. Sunday-Start Regimen: The patient begins taking the first light yellow or pink tablet from the top row of the dispenser (labeled Sunday) on the first Sunday after menstrual flow begins. When the menstrual flow begins on Sunday, the first light yellow or pink tablet is taken on the same day. The patient takes one light yellow or pink tablet daily for 21 days. The last light yellow or pink tablet in the dispenser will be taken on a Saturday. Upon completion of all 21 light yellow or pink tablets, and without interruption, the patient takes one brown tablet daily for 7 days. Upon completion of this first course of tablets, the patient begins a second course of 28-day tablets, without interruption, the next day (Sunday), starting with the Sunday light yellow or pink tablet in the top row. Adhering to this regimen of one light yellow or pink tablet daily for 21 days, followed without interruption by one brown tablet daily for seven days, the patient will start all subsequent cycles on a Sunday. B. Day-1 Start Regimen: The first day of menstrual flow is Day 1. The patient places the self-adhesive day label strip that corresponds to her starting day over the preprinted days on the tablet dispenser. She starts taking one light yellow or pink tablet daily, beginning with the first light yellow or pink tablet in the top row. After the last light yellow or pink tablet (at the end of the third row) has been taken, the patient will then take the brown tablets for a week (7 days). For all subsequent cycles, the patient begins a new 28 tablet regimen on the eighth day after taking her last light yellow or pink tablet, again starting with the first tablet in the top row after placing the appropriate day label strip over the preprinted days on the tablet dispenser. Following this regimen o

Warnings

WARNINGS The use of oral contraceptives is associated with increased risks of several serious conditions including myocardial infarction, thromboembolism, stroke, hepatic neoplasia, and gallbladder disease, although the risk of serious morbidity or mortality is very small in healthy women without underlying risk factors. The risk of morbidity and mortality increases significantly in the presence of other underlying risk factors such as hypertension, hyperlipidemias, obesity, and diabetes. Practitioners prescribing oral contraceptives should be familiar with the following information relating to these risks. The information contained in this package insert is principally based on studies carried out in patients who used oral contraceptives with higher formulations of estrogens and progestogens than those in common use today. The effect of long-term use of the oral contraceptives with lower formulations of both estrogens and progestogens remains to be determined. Throughout this labeling, epidemiological studies reported are of two types: retrospective or case control studies and prospective or cohort studies. Case control studies provide a measure of the relative risk of a disease, namely, a ratio of the incidence of a disease among oral contraceptive users to that among nonusers. The relative risk does not provide information on the actual clinical occurrence of a disease. Cohort studies provide a measure of attributable risk, which is the difference in the incidence of disease between oral contraceptive users and nonusers. The attributable risk does provide information about the actual occurrence of a disease in the population (adapted from References 8 and 9 with the author's permission). For further information, the reader is referred to a text on epidemiological methods. 1. Thromboembolic Disorders and Other Vascular Problems a. Myocardial infarction An increased risk of myocardial infarction has been attributed to oral contraceptive use. This risk is primarily in smokers or women with other underlying risk factors for coronary artery disease such as hypertension, hypercholesterolemia, morbid obesity, and diabetes. The relative risk of heart attack for current oral contraceptive users has been estimated to be two to six (10-16). The risk is very low under the age of 30. Smoking in combination with oral contraceptive use has been shown to contribute substantially to the incidence of myocardial infarctions in women in their mid-thirties or older with smoking accounting for the majority of excess cases (17). Mortality rates associated with circulatory disease have been shown to increase substantially in smokers over the age of 35 and non-smokers over the age of 40 (Table II) among women who use oral contraceptives. TABLE II CIRCULATORY DISEASE MORTALITY RATES PER 100,000 WOMAN YEARS BY AGE, SMOKING STATUS AND ORAL CONTRACEPTIVE USE Adapted from P.M. Layde and V. Beral, Reference 18. Oral contraceptives may compound the effects of well-known risk factors, such as hypertension, diabetes, hyperlipidemias, age and obesity (19). In particular, some progestogens are known to decrease HDL cholesterol and cause glucose intolerance, while estrogens may create a state of hyperinsulinism (20-24). Oral contraceptives have been shown to increase blood pressure among users (see section 9 in WARNINGS). Similar effects on risk factors have been associated with an increased risk of heart disease. Oral contraceptives must be used with caution in women with cardiovascular disease risk factors. table II b. Thromboembolism An increased risk of thromboembolic and thrombotic disease associated with the use of oral contraceptives is well established. Case control studies have found the relative risk of users compared to non-users to be 3 for the first episode of superficial venous thrombosis, 4 to 11 for deep vein thrombosis or pulmonary embolism, and 1.5 to 6 for women with predisposing conditions for venous thromboembolic disease (9, 10, 25-30). Cohort studies have shown the relative risk to be somewhat lower, about 3 for new cases and about 4.5 for new cases requiring hospitalization (31). The risk of thromboembolic disease due to oral contraceptives is not related to length of use and disappears after pill use is stopped (8). A two- to four-fold increase in relative risk of postoperative thromboembolic complications has been reported with the use of oral contraceptives (15,32). The relative risk of venous thrombosis in women who have predisposing conditions is twice that of women without such medical conditions (15,32). If feasible, oral contraceptives should be discontinued at least four weeks prior to and for two weeks after elective surgery of a type associated with an increase in risk of thromboembolism and during and following prolonged immobilization. Since the immediate postpartum period is also associated with an increased risk of thromboembolism, oral contraceptives should be started no earlier than four to six weeks after delivery in women who elect not to breastfeed. c. Cerebrovascular disease Oral contraceptives have been shown to increase both the relative and attributable risks of cerebrovascular events (thrombotic and hemorrhagic strokes), although, in general, the risk is greatest among older (greater than 35 years), hypertensive women who also smoke. Hypertension was found to be a risk factor for both users and nonusers, for both types of strokes, while smoking interacted to increase the risk for hemorrhagic strokes (33-35). In a large study, the relative risk of thrombotic strokes has been shown to range from 3 for normotensive users to 14 for users with severe hypertension (36). The relative risk of hemorrhagic stroke is reported to be 1.2 for non-smokers who used oral contraceptives, 2.6 for smokers who did not use oral contraceptives, 7.6 for smokers who used oral contraceptives, 1.8 for normotensive users, and 25.7 for users with severe hypertension (36). The attributable risk is also greater in older women (9). d. Dose-related risk of vascular disease from oral contraceptives A positive association has been observed between the amount of estrogen and progestogen in oral contraceptives and the risk of vascular disease (37-39). A decline in serum high-density lipoproteins (HDL) has been reported with many progestational agents (20-22). A decline in serum high-density lipoproteins has been associated with an increased incidence of ischemic heart disease. Because estrogens increase HDL cholesterol, the net effect of an oral contraceptive depends on a balance achieved between doses of estrogen and progestin and the nature of the progestin used in the contraceptives. The amount and activity of both hormones should be considered in the choice of an oral contraceptive. Minimizing exposure to estrogen and progestogen is in keeping with good principles of therapeutics. For any particular oral contraceptive, the dosage regimen prescribed should be one which contains the least amount of estrogen and progestogen that is compatible with the needs of the individual patient. New acceptors of oral contraceptive agents should be started on preparations containing the lowest dose of estrogen which produces satisfactory results for the patient. e. Persistence of risk of vascular disease There are two studies which have shown persistence of risk of vascular disease for ever-users of oral contraceptives. In a study in the United States, the risk of developing myocardial infarction after discontinuing oral contraceptives persists for at least 9 years for women 40 to 49 years who had used oral contraceptives for 5 or more years, but this increased risk was not demonstrated in other age groups (14). In another study in Great Britain, the risk of developing cerebrovascular disease persisted for at least 6 years after discontinuation of oral contraceptives, although excess risk was very small (40). However, both studies were performed with oral contraceptive formulations

Contraindications

CONTRAINDICATIONS Do not prescribe norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets to women who are known to have the following conditions: • A high risk of arterial or venous thrombotic diseases. Examples include women who are known to: o Smoke, if over age 35 [see Boxed Warning and Warnings and Precautions (5.1) ] o Have deep vein thrombosis or pulmonary embolism, now or in the past [see Warnings and Precautions (5.1) ] o Have cerebrovascular disease [see Warnings and Precautions (5.1) ] o Have coronary artery disease [see Warnings and Precautions (5.1) ] o Have thrombogenic valvular or thrombogenic rhythm diseases of the heart (for example, subacute bacterial endocarditis with valvular disease, or atrial fibrillation) [see Warnings and Precautions (5.1) ] o Have inherited or acquired hypercoagulopathies [see Warnings and Precautions (5.1) ] o Have uncontrolled hypertension [see Warnings and Precautions (5.3) ] o Have diabetes mellitus with vascular disease [see Warnings and Precautions (5.5) ] o Have headaches with focal neurological symptoms or have migraine headaches with aura • All women over age 35 with migraine headache [see Warnings and Precautions (5.6) ] • Liver tumors, benign or malignant, or liver disease [see Warnings and Precautions (5.2) ] • Undiagnosed abnormal uterine bleeding [see Warnings and Precautions (5.7) ] • Pregnancy, because there is no reason to use COCs during pregnancy [see Warnings and Precautions (5.8) and Use in Specific Populations (8.1) ] • Breast cancer or other estrogen- or progestin-sensitive cancer, now or in the past [see Warnings and Precautions (5.10) ] • Use of Hepatitis C drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir, due to the potential for ALT elevations [see Warnings and Precautions (5.3) ] • A high risk of arterial or venous thrombotic diseases ( 4 ) • Breast cancer or other estrogen- or progestin-sensitive cancer ( 4 ) • Liver tumors or liver disease ( 4 ) • Undiagnosed abnormal uterine bleeding ( 4 ) • Pregnancy ( 4 ) • Co-administration with Hepatitis C drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir ( 4 )

Drug interactions

DRUG INTERACTIONS Consult the labeling of concurrently used drugs to obtain further information about interactions with oral contraceptives or the potential for enzyme alterations. Drugs or herbal products that induce certain enzymes (for example CYP3A4) may decrease the effectiveness of COCs or increase breakthrough bleeding. Counsel patients to use a back-up method or alternative method of contraception when enzyme inducers are used with COCs. (7.1) 7.1 Effects of Other Drugs on Combined Oral Contraceptives Substances decreasing the plasma concentrations of COCs and potentially diminishing the efficacy of COCs: Drugs or herbal products that induce certain enzymes, including cytochrome P450 3A4 (CYP3A4), may decrease the plasma concentrations of COCs and potentially diminish the effectiveness of COCs or increase breakthrough bleeding. Some drugs or herbal products that may decrease the effectiveness of oral contraceptives including phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. John’s wort. Interactions between COCs and other drugs may lead to breakthrough bleeding and/or contraceptive failure. Counsel women to use an alternative method of contraception or a back-up method when enzyme inducers are used with COCs, and to continue back-up contraception for 28 days after discontinuing the enzyme inducer to ensure contraceptive reliability. Substances increasing the plasma concentrations of COCs : Co-administration of atorvastatin or rosuvastatin and certain COCs containing ethinyl estradiol (EE) increase AUC values for EE by approximately 20 to 25%. Ascorbic acid and acetaminophen may increase plasma EE concentrations, possibly by inhibition of conjugation. CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. Human immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors and non-nucleoside reverse transcriptase inhibitors: Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease inhibitors (decrease [e.g., nelfinavir, ritonavir, darunavir/ritonavir, (fos)amprenavir/ritonavir, lopinavir/ritonavir, and tipranavir/ritonavir] or increase [e.g., indinavir and atazanavir/ritonavir])/HCV protease inhibitors or with non-nucleoside reverse transcriptase inhibitors (decrease [e.g., nevirapine] or increase [e.g., etravirine]). 7.2 Effects of Combined Oral Contraceptives on Other Drugs COCs containing EE may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations. COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, and temazepam. Significant decrease in plasma concentration of lamotrigine has been shown, likely due to induction of lamotrigine glucuronidation. This may reduce seizure control; therefore, dosage adjustments of lamotrigine may be necessary. Women on thyroid hormone replacement therapy may need increased doses of thyroid hormone because the serum concentration of thyroid-binding globulin increases with use of COCs [see Warnings and Precautions (5.12) ]. 7.3 Concomitant Use with HCV Combination Therapy – Liver Enzyme Elevation Co-administration of Aurovela 24 Fe with HCV drug combinations containing ombitasvir/ paritaprevir/ritonavir, with or without dasabuvir is contraindicated due to potential for ALT elevations [see Warnings and Precautions (5.3) ]. Co-administration of Aurovela 24 Fe and glecaprevir/pibrentasvir is not recommended due to potential for ALT elevations. 7.4 Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins.

Adverse reactions

ADVERSE REACTIONS The following serious adverse reactions with the use of COCs are discussed elsewhere in the labeling: Serious cardiovascular events and stroke [see Boxed Warning and Warnings and Precautions (5.1) ] Vascular events [see Warnings and Precautions (5.1) ] Liver disease [see Warnings and Precautions (5.2) ] Adverse reactions commonly reported by COC users are: Irregular uterine bleeding Nausea Breast tenderness Headache The most common adverse reactions (greater than or equal to 2%) were: headache, vaginal candidiasis, nausea, menstrual cramps, breast tenderness, mood changes, bacterial vaginitis, acne, and weight gain. (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Aurobindo Pharma USA, Inc. at 1-866-850-2876 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trial Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to the rates in the clinical trials of another drug and may not reflect the rates observed in practice. The safety of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets were evaluated in 743 subjects who participated in an open-label, randomized, active-controlled, multicenter clinical trial of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets for contraception. This trial examined healthy, non-pregnant volunteers aged 18 to 45 years, who were sexually active and had a body mass index of less than or equal to 35 kg/m 2 . Subjects were followed for up to six 28-day cycles providing a total of 3,823 treatment-cycles of exposure. Common Adverse Reactions ( greater than or equal to 2% of all subjects): The most common adverse reactions reported by at least 2% of the 743 women using norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets were the following, in order of decreasing incidence: headache (6.3%), vaginal candidiasis (6.1%), nausea (4.6%), menstrual cramps (4.4%), breast tenderness (3.4%), mood changes (including mood swings (2.2%) and depression (1.1%), bacterial vaginitis (3.1%), acne (2.7%), and weight gain (2.0%). Adverse Reactions Leading to Study Discontinuation : Among the 743 women using norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets, 46 women (6.2%) withdrew because of an adverse event. Adverse events occurring in 3 or more subjects leading to discontinuation of treatment were, in decreasing order: abnormal bleeding (0.9%), nausea (0.8%), mood changes (0.8%), menstrual cramps (0.4%), increased blood pressure (0.4%), and irregular bleeding (0.4%). 6.2 Postmarketing Experience Five studies that compared breast cancer risk between ever-users (current or past use) of COCs and never-users of COCs reported no association between ever use of COCs and breast cancer risk, with effect estimates ranging from 0.90 to 1.12 (Figure 1). Three studies compared breast cancer risk between current or recent COC users (<6 months since last use) and never users of COCs (Figure 1). One of these studies reported no association between breast cancer risk and COC use. The other two studies found an increased relative risk of 1.19 to 1.33 with current or recent use. Both of these studies found an increased risk of breast cancer with current use of longer duration, with relative risks ranging from 1.03 with less than one year of COC use to approximately 1.4 with more than 8 to 10 years of COC use. Figure 1: Relevant Studies of Risk of Breast Cancer with Combined Oral Contraceptives RR = relative risk; OR = odds ratio; HR = hazard ratio. “ever COC” are females with current or past COC use; “never COC use” are females that never used COCs. The following adverse reactions have been identified during post approval use of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets. Because these reactions are reported voluntarily from a population of uncertain size, it is difficult to reliably estimate their frequency or evaluate a causal relationship to drug exposure. Cardiovascular: chest pain, palpitations, tachycardia, angina pectoris, myocardial infarction. Endocrine disorders: hypothyroidism, hyperthyroidism. Eye disorders: blurred vision, visual impairment, transient blindness, corneal thinning, change in corneal curvature (steepening). GI disorders : nausea, vomiting, abdominal pain, constipation, pancreatitis. Hepatobiliary disorders: cholelithiasis, cholecystitis, hepatic adenoma, hemangioma of liver. Immune system disorders: anaphylactic reactions, including urticaria, angioedema, and severe reactions with respiratory and circulatory symptoms. Infections: vaginal infection. Metabolism and nutrition disorders : change in weight or appetite (increase or decrease). hypoglycemia, diabetes mellitus, anemia. Musculoskeletal and connective tissue disorders: myalgia. Skin and subcutaneous disorders: alopecia, rash (generalized and allergic), pruritus, skin discoloration, night sweats, swelling face or lips, hirsutism, skin burning sensation, erythema multiforme, erythema nodosum, hemorrhagic eruption. Nervous system disorders: headache, dizziness, migraine, hyperesthesia, paraesthesia, hypoaesthesia, somnolence, loss of consciousness, sensory disturbance. Psychiatric disorders: mood swings, depression, insomnia, anxiety, suicidal ideation, panic attack, changes in libido, bipolar disorder, dissociation, homicidal ideation. Renal and urinary disorders: pollakiuria, dysuria, cystitis-like syndrome. Reproductive system and breast disorders: breast changes (tenderness, pain, enlargement, and secretion), premenstrual syndrome, ovarian cyst, pelvic pain, ovarian cyst ruptured, pelvic fluid collection. Vascular disorders: hot flush, thrombosis/embolism (coronary artery, pulmonary, cerebral, deep vein), migraine, transient ischemic attack, ischemic stroke. Figure 1: Risk of Breast Cancer with Combined Oral Contraceptive Use

Mechanism of action

CLINICAL PHARMACOLOGY ORAL CONTRACEPTION Combined oral contraceptives act by suppression of gonadotropins. Although the primary mechanism of this action is inhibition of ovulation, other alterations include changes in the cervical mucus (which increase the difficulty of sperm entry into the uterus) and the endometrium (which reduce the likelihood of implantation). In vitro and animal studies have shown that norethindrone combines high progestational activity with low intrinsic androgenicity. In humans, norethindrone acetate in combination with ethinyl estradiol does not counteract estrogen-induced increases in sex hormone binding globulin (SHBG). Following multiple-dose administration of norethindrone acetate and ethinyl estradiol tablets, serum SHBG concentrations increase two- to three-fold and free testosterone concentrations decrease by 47% to 64%, indicating minimal androgenic activity. ACNE Acne is a skin condition with a multifactorial etiology, including androgen stimulation of sebum production. While the combination of norethindrone acetate and ethinyl estradiol increases sex hormone binding globulin (SHBG) and decreases free testosterone, the relationship between these changes and a decrease in the severity of facial acne in otherwise healthy women with this skin condition has not been established. Pharmacokinetics Absorption Norethindrone acetate appears to be completely and rapidly deacetylated to norethindrone after oral administration, since the disposition of norethindrone acetate is indistinguishable from that of orally administered norethindrone. Norethindrone acetate and ethinyl estradiol are rapidly absorbed, with maximum plasma concentrations of norethindrone and ethinyl estradiol occurring 1 to 2 hours post-dose. Both are subject to first-pass metabolism after oral dosing, resulting in an absolute bioavailability of approximately 64% for norethindrone and 43% for ethinyl estradiol. Administration of norethindrone acetate and ethinyl estradiol with a high fat meal decreases rate, but not extent, of ethinyl estradiol absorption. The extent of norethindrone absorption is increased by 27% following administration with food. Plasma concentrations of norethindrone and ethinyl estradiol following chronic administration of norethindrone acetate and ethinyl estradiol tablets to 17 women are shown below (Figure 1). Mean steady-state concentrations of norethindrone for the 1/20, 1/30, and 1/35 tablet strengths increased as ethinyl estradiol dose increased over the 21-day dose regimen, due to dose-dependent effects of ethinyl estradiol on serum SHBG concentrations (Table 1). Mean steady-state plasma concentrations of ethinyl estradiol for the 1/20, 1/30, and 1/35 tablet strengths were proportional to ethinyl estradiol dose (Table 1). Figure 1. Mean Steady-State Plasma Ethinyl Estradiol and Norethindrone Concentrations Following Chronic Administration of Norethindrone Acetate and Ethinyl Estradiol Tablets Table 1. Mean (SD) Steady-State Pharmacokinetic Parameters Following Chronic Administration of Norethindrone Acetate and Ethinyl Estradiol Tablets * Norethindrone Acetate / Ethinyl Estradiol Dose Cycle Day Cmax AUC CL/F SHBG † Norethindrone mg/µg ng/mL ng·hr/mL mL/min nmol/L 1/20 5 10.8 (3.9) 81.1 (28.5) 220 (137) 120 (33) 1/30 12 12.7 (4.1) 102 (32) 166 (85) 139 (42) 1/35 21 12.7 (4.1) 109 (32) 152 (73) 163 (40) Ethinyl Estradiol mg/µg pg/mL pg·hr/mL mL/min nmol/L 1/20 5 61.0 (16.8) 661 (190) 549 (171) 1/30 12 92.4 (26.9) 973 (293) 546 (199) 1/35 21 113 (44) 1149 (372) 568 (219) * Cmax = Maximum plasma concentration; AUC (0-24) = Area under the plasma concentration-time curve over the dosing interval; CL/F = Apparent oral clearance † Mean (SD) baseline value = 55 (29) nmol/L No age-related differences were seen in plasma concentrations of ethinyl estradiol and norethindrone following administration of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets to 119 postmenarchal women ages 15 to 48 years. Distribution Volume of distribution of norethindrone and ethinyl estradiol ranges from 2 to 4 L/kg. Plasma protein binding of both steroids is extensive (> 95%); norethindrone binds to both albumin and sex hormone binding globulin, whereas ethinyl estradiol binds only to albumin. Although ethinyl estradiol does not bind to SHBG, it induces SHBG synthesis. Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets increase serum SHBG concentrations two- to three-fold (Table 1). Metabolism Norethindrone undergoes extensive biotransformation, primarily via reduction, followed by sulfate and glucuronide conjugation. The majority of metabolites in the circulation are sulfates, with glucuronides accounting for most of the urinary metabolites. A small amount of norethindrone acetate is metabolically converted to ethinyl estradiol. Ethinyl estradiol is also extensively metabolized, both by oxidation and by conjugation with sulfate and glucuronide. Sulfates are the major circulating conjugates of ethinyl estradiol and glucuronides predominate in urine. The primary oxidative metabolite is 2-hydroxy ethinyl estradiol, formed by the CYP3A4 isoform of cytochrome P450. Part of the first-pass metabolism of ethinyl estradiol is believed to occur in gastrointestinal mucosa. Ethinyl estradiol may undergo enterohepatic circulation. Excretion Norethindrone and ethinyl estradiol are excreted in both urine and feces, primarily as metabolites. Plasma clearance values for norethindrone and ethinyl estradiol are similar (approximately 0.4 L/hr/kg). Steady-state elimination half-lives of norethindrone and ethinyl estradiol following administration of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets are approximately 13 hours and 19 hours, respectively. Concentrations SPECIAL POPULATION Race The effect of race on the disposition of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets has not been evaluated. Renal Insufficiency The effect of renal disease on the disposition of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets has not been evaluated. In premenopausal women with chronic renal failure undergoing peritoneal dialysis who received multiple doses of a combined oral contraceptive containing ethinyl estradiol and norethindrone, plasma ethinyl estradiol concentrations were higher and norethindrone concentrations were unchanged compared to concentrations in premenopausal women with normal renal function. Hepatic Insufficiency The effect of hepatic disease on the disposition of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets has not been evaluated. However, ethinyl estradiol and norethindrone may be poorly metabolized in patients with impaired liver function. Drug-Drug Interactions Numerous drug-drug interactions have been reported for combined oral contraceptives. A summary of these is found under PRECAUTIONS, Drug Interactions .

NDC examples

50090-31220378-730363629-562863187-8900023-58620093-821068462-84965862-93450090-323750102-22468462-37670700-152

Indicated ICD-10 codes

Treats these conditions

Source: openFDA + RxNorm · 2026

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