Tri-Legest Fe
Norethindrone Acetate and Ethinyl Estradiol · Kit
Uses
Tri-Legest ® Fe (norethindrone acetate and ethinyl estradiol tablets, USP and ferrous fumarate tablets [not USP]) is indicated for the prevention of pregnancy in women who elect to use combined oral contraceptives as a method of contraception. Tri-Legest ® Fe is 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. Tri-Legest ® Fe 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. % of Women Experiencing an Unintended Pregnancy within the First Year of Use % of Women Continuing Use at One Year ‡ Method Typical Use * Perfect Use † (1) (2) (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 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, Stewart GK, Kowel D, Guest F, Contraceptive Technology: Seventeenth Revised Edition. New York NY: Irvington Publishers, 1998. ‡ 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 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 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 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.
Dosage and administration
The tablet dispenser has been designed to make Tri-Legest ® Fe (norethindrone acetate and ethinyl estradiol tablets, USP and ferrous fumarate tablets [not USP]) dosing as easy and as convenient as possible. The tablets are arranged in 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 days of the week stickers 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 days of the week sticker 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 28-Day Dosage Regimen To achieve maximum contraceptive effectiveness, Tri-Legest ® Fe (norethindrone acetate and ethinyl estradiol tablets, USP and ferrous fumarate tablets [not USP]) should be taken exactly as directed and at intervals not exceeding 24 hours. Tri-Legest ® Fe (norethindrone acetate and ethinyl estradiol tablets, USP and ferrous fumarate tablets [not USP]) provides a continuous administration regimen consisting of 21 light pink, light yellow, and light blue tablets of norethindrone acetate and ethinyl estradiol and seven 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 pink tablet from the top row of the tablet dispenser (labeled Sunday) on the first Sunday after menstrual flow begins. When menstrual flow begins on Sunday, the first light pink tablet is taken on the same day. The patient takes one tablet daily for 21 days. The last light blue tablet in the dispenser will be taken on a Saturday. Upon completion of all 21 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 pink tablet in the top row. Adhering to this regimen of one tablet daily for 21 days, followed without interruption by one brown tablet daily for 7 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 days of the week sticker that corresponds to her starting day over the preprinted days on the tablet dispenser. She starts taking one light pink tablet daily, beginning with the first light pink tablet in the top row. After the last light blue 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 blue tablet, again starting with the first tablet in the top row after placing the appropriate days of the week sticker over the preprinted days on the tablet dispenser. Following this regimen of 21 light pink, light yellow, and light blue tablets and 7 brown tablets, the patient will start all subsequent cycles on the same day of the week as the first course. Tablets should be taken regularly at the same time each day and can be taken without regard to meals. 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 the brown tablets have been started. In any event, the next course of tablets should be started without interruption. If spotting occurs while the patient is taking light pink, light yellow, or light blue tablets, continue medication without interruption. If the patient forgets to take one or more light pink , light yellow or light blue 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 light pink, light yellow and light blue 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.
Contraindications
Combined oral contraceptives should not be used in women who currently have the following: A high risk of arterial or venous thrombotic diseases. Examples include women who are known to: Smoke, if over age 35 Have cerebrovascular disease Have coronary artery disease Have current or history of deep vein thrombosis or pulmonary embolism Have thrombogenic valvular or thrombogenic rhythm diseases of the heart Have inherited or acquired hypercoagulopathies Have uncontrolled hypertension or hypertension with vascular disease Have headaches with focal neurological symptoms, migraine headaches with aura, or over age 35 with any migraine headaches Have diabetes mellitus and are over age 35, diabetes mellitus with hypertension or with vascular disease or end-organ damage, or diabetes mellitus of > 20 years duration Current diagnosis of, or history of, breast cancer, which may be hormone-sensitive Undiagnosed abnormal genital bleeding Cholestatic jaundice of pregnancy or jaundice with prior pill use Hepatic adenomas or carcinomas Known or suspected pregnancy Are receiving Hepatitis C drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir, due to the potential for ALT elevations (see WARNINGS , RISK OF LIVER ENZYME ELEVATIONS WITH CONCOMITANT HEPATITIS C TREATMENT ).
Warnings
The use of combined 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 combined 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 combined oral contraceptives with higher formulations of estrogens and progestogens than those in common use today. The effect of long-term use of the combined 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 combined 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 combined 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 combined 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 combined oral contraceptive users has been estimated to be two to six. The risk is very low under the age of 30. Smoking in combination with combined 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. 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 (Figure 3) among women who use combined oral contraceptives. Figure 3. Circulatory Disease Mortality Rates per 100,000 Woman Years by Age, Smoking Status and Combined Oral Contraceptive Use Combined oral contraceptives may compound the effects of well-known risk factors, such as hypertension, diabetes, hyperlipidemias, age and obesity. In particular, some progestogens are known to decrease HDL cholesterol and cause glucose intolerance, while estrogens may create a state of hyperinsulinism. Combined oral contraceptives have been shown to increase blood pressure among users (see Section 10 in WARNINGS ). Similar effects on risk factors have been associated with an increased risk of heart disease. Combined oral contraceptives must be used with caution in women with cardiovascular disease risk factors. Figure 3 b. Thromboembolism An increased risk of thromboembolic and thrombotic disease associated with the use of combined oral contraceptives is well established. Case control studies have found the relative risk of users compared to nonusers 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. 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. The risk of thromboembolic disease due to combined oral contraceptives is not related to length of use and disappears after combined oral contraceptive pill use is stopped. A two- to four-fold increase in relative risk of postoperative thromboembolic complications has been reported with the use of combined oral contraceptives. The relative risk of venous thrombosis in women who have predisposing conditions is twice that of women without such medical conditions. If feasible, combined oral contraceptives should be discontinued at least 4 weeks prior to and for 2 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, combined oral contraceptives should be started no earlier than 4 to 6 weeks after delivery in women who elect not to breastfeed. c. Cerebrovascular disease Combined 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 (>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. 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.
Precautions
1. Patients should be counseled that this product does not protect against HIV infection (AIDS) and other sexually transmitted diseases. 2. Physical Examination and Follow-Up It is good medical practice for all women to have annual history and physical examinations, including women using combined oral contraceptives. The physical examination, however, may be deferred until after initiation of combined oral contraceptives if requested by the woman and judged appropriate by the clinician. The physical examination should include special reference to blood pressure, breasts, abdomen and pelvic organs, including cervical cytology, and relevant laboratory tests. In case of undiagnosed, persistent or recurrent abnormal vaginal bleeding, appropriate measures should be conducted to rule out malignancy. Women with a strong family history of breast cancer or who have breast nodules should be monitored with particular care. 3. Lipid Disorders Women who are being treated for hyperlipidemia should be followed closely if they elect to use combined oral contraceptives. Some progestogens may elevate LDL levels and may render the control of hyperlipidemias more difficult. 4. Liver Function If jaundice develops in any woman receiving such drugs, the medication should be discontinued. Steroid hormones may be poorly metabolized in patients with impaired liver function. 5. Fluid Retention Combined oral contraceptives may cause some degree of fluid retention. They should be prescribed with caution, and only with careful monitoring, in patients with conditions which might be aggravated by fluid retention. 6. Emotional Disorders Women with a history of depression should be carefully observed and the drug discontinued if depression recurs to a serious degree. 7. Contact Lenses Contact lens wearers who develop visual changes or changes in lens tolerance should be assessed by an ophthalmologist. 8. Drug Interactions Effects of Other Drugs on Combined Oral Contraceptives Rifampin: Metabolism of both norethindrone and ethinyl estradiol is increased by rifampin. A reduction in contraceptive effectiveness and increased incidence of breakthrough bleeding and menstrual irregularities have been associated with concomitant use of rifampin. Anticonvulsants: Anticonvulsants such as phenobarbital, phenytoin, and carbamazepine, have been shown to increase the metabolism of ethinyl estradiol and/or norethindrone, which could result in a reduction in contraceptive effectiveness. Antibiotics: Pregnancy while taking combined oral contraceptives has been reported when the combined oral contraceptives were administered with antimicrobials such as ampicillin, tetracycline, and griseofulvin. However, clinical pharmacokinetic studies have not demonstrated any consistent effect of antibiotics (other than rifampin) on plasma concentrations of synthetic steroids. Atorvastatin: Coadministration of atorvastatin and an combined oral contraceptive increased AUC values for norethindrone and ethinyl estradiol by approximately 30% and 20%, respectively. St. John’s Wort: Herbal products containing St. John’s Wort (hypericum perforatum) may induce hepatic enzymes (cytochrome P450) and p-glycoprotein transporter and may reduce the effectiveness of combined oral contraceptives. This may also result in breakthrough bleeding. 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 progestin have been noted in some cases of co-administration with HIV/HCV 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 (decrease [e.g., boceprevir and telaprevir]) or with non-nucleoside reverse transcriptase inhibitors (decrease [e.g., nevirapine] or increase [e.g., etravirine]). Concomitant Use with HCV Combination Therapy – Liver Enzyme Elevation: Do not co-administer Tri-Legest ® Fe with HCV drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir, due to potential for ALT elevations (see WARNINGS , RISK OF LIVER ENZYME ELEVATIONS WITH CONCOMITANT HEPATITIS C TREATMENT ). Other: Ascorbic acid and acetaminophen may increase plasma ethinyl estradiol concentrations, possibly by inhibition of conjugation. A reduction in contraceptive effectiveness and increased incidence of breakthrough bleeding has been suggested with phenylbutazone. Effects of Combined Oral Contraceptives on Other Drugs COCs containing ethinyl estradiol 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, temazepam and lamotrigine. 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 increase with use of COCs. 9. Interactions with Laboratory Tests Certain endocrine and liver function tests and blood components may be affected by combined oral contraceptives: a. Increased prothrombin and factors VII, VIII, IX, and X; decreased antithrombin 3; increased norepinephrine-induced platelet aggregability. b. Increased thyroid binding globulin (TBG) leading to increased circulating total thyroid hormone, as measured by protein-bound iodine (PBI), T 4 by column or by radioimmunoassay. Free T 3 resin uptake is decreased, reflecting the elevated TBG; free T 4 concentration is unaltered. c.
Side effects
Post Marketing 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 4). Three studies compared breast cancer risk between current or recent COC users (<6 months since last use) and never users of COCs (Figure 4). 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 4: 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. An increased risk of the following serious adverse reactions has been associated with the use of combined oral contraceptives (see WARNINGS section): Thrombophlebitis Arterial thromboembolism Pulmonary embolism Myocardial infarction Cerebral hemorrhage Cerebral thrombosis Hypertension Gallbladder disease Hepatic adenomas or benign liver tumors There is evidence of an association between the following conditions and the use of combined oral contraceptives, although additional confirmatory studies are needed: Mesenteric thrombosis Retinal thrombosis The following adverse reactions have been reported in patients receiving combined oral contraceptives and are believed to be drug-related: Nausea Vomiting Gastrointestinal symptoms (such as abdominal cramps and bloating) Breakthrough bleeding Spotting Change in menstrual flow Amenorrhea Temporary infertility after discontinuation of treatment Edema Melasma which may persist Breast changes: tenderness, enlargement, secretion Change in weight (increase or decrease) Change in cervical erosion and secretion Diminution in lactation when given immediately postpartum Cholestatic jaundice Migraine Rash (allergic) Mental depression Mood swings Reduced tolerance to carbohydrates Vaginal candidiasis Change in corneal curvature (steepening) Intolerance to contact lenses The following adverse reactions have been reported in users of combined oral contraceptives and the association has been neither confirmed nor refuted: Pre-menstrual syndrome Cataracts Changes in appetite Cystitis-like syndrome Headache Nervousness Dizziness Hirsutism Loss of scalp hair Erythema multiforme Erythema nodosum Hemorrhagic eruption Vaginitis Porphyria Impaired renal function Hemolytic uremic syndrome Budd-Chiari syndrome Acne Changes in libido Colitis To report SUSPECTED ADVERSE EVENTS, contact Teva at 1-888-838-2872 or FDA at 1-800-FDA-1088 or http://www.fda.gov/medwatch for voluntary reporting of adverse reactions. 1
Drug interactions
8. Drug Interactions Effects of Other Drugs on Combined Oral Contraceptives Rifampin: Metabolism of both norethindrone and ethinyl estradiol is increased by rifampin. A reduction in contraceptive effectiveness and increased incidence of breakthrough bleeding and menstrual irregularities have been associated with concomitant use of rifampin. Anticonvulsants: Anticonvulsants such as phenobarbital, phenytoin, and carbamazepine, have been shown to increase the metabolism of ethinyl estradiol and/or norethindrone, which could result in a reduction in contraceptive effectiveness. Antibiotics: Pregnancy while taking combined oral contraceptives has been reported when the combined oral contraceptives were administered with antimicrobials such as ampicillin, tetracycline, and griseofulvin. However, clinical pharmacokinetic studies have not demonstrated any consistent effect of antibiotics (other than rifampin) on plasma concentrations of synthetic steroids. Atorvastatin: Coadministration of atorvastatin and an combined oral contraceptive increased AUC values for norethindrone and ethinyl estradiol by approximately 30% and 20%, respectively. St. John’s Wort: Herbal products containing St. John’s Wort (hypericum perforatum) may induce hepatic enzymes (cytochrome P450) and p-glycoprotein transporter and may reduce the effectiveness of combined oral contraceptives. This may also result in breakthrough bleeding. 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 progestin have been noted in some cases of co-administration with HIV/HCV 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 (decrease [e.g., boceprevir and telaprevir]) or with non-nucleoside reverse transcriptase inhibitors (decrease [e.g., nevirapine] or increase [e.g., etravirine]). Concomitant Use with HCV Combination Therapy – Liver Enzyme Elevation: Do not co-administer Tri-Legest ® Fe with HCV drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir, due to potential for ALT elevations (see WARNINGS , RISK OF LIVER ENZYME ELEVATIONS WITH CONCOMITANT HEPATITIS C TREATMENT ). Other: Ascorbic acid and acetaminophen may increase plasma ethinyl estradiol concentrations, possibly by inhibition of conjugation. A reduction in contraceptive effectiveness and increased incidence of breakthrough bleeding has been suggested with phenylbutazone. Effects of Combined Oral Contraceptives on Other Drugs COCs containing ethinyl estradiol 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, temazepam and lamotrigine. 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 increase with use of COCs.
Use in specific populations
Special Population Race The effect of race on the disposition of norethindrone acetate and ethinyl estradiol has not been evaluated. Renal Insufficiency The effect of renal disease on the disposition of norethindrone acetate and ethinyl estradiol 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 has not been evaluated. However, ethinyl estradiol and norethindrone may be poorly metabolized in patients with impaired liver function.
Pregnancy
11. Pregnancy See CONTRAINDICATIONS and WARNINGS sections.
Pediatric use
13. Pediatric Use Safety and efficacy of norethindrone acetate and ethinyl estradiol tablets have been established in women of reproductive age. Safety and efficacy are expected to be the same for postpubertal adolescents under the age of 16 and for users 16 years and older. Use of this product before menarche is not indicated.
Geriatric use
14. Geriatric Use This product has not been studied in women over 65 years of age and is not indicated in this population.
Overdosage
Serious ill effects have not been reported following acute ingestion of large doses of combined oral contraceptives by young children. Overdosage may cause nausea, and withdrawal bleeding may occur in females.
Description
Tri-Legest ® Fe (norethindrone acetate and ethinyl estradiol tablets, USP and ferrous fumarate tablets [not USP]) is a graduated estrophasic combined oral contraceptive providing estrogen in a graduated sequence over a 21-day period with a constant dose of progestogen. Tri-Legest ® Fe provides for a continuous dosage regimen consisting of 21 oral contraceptive tablets and seven ferrous fumarate tablets. The ferrous fumarate tablets are present to facilitate ease of drug administration via a 28-day regimen, are non-hormonal, and do not serve any therapeutic purpose. Each light pink tablet contains 1 mg norethindrone acetate [(17α)-17-(acetyloxy)-19-norpregna-4-en-20-yn-3-one] and 20 mcg ethinyl estradiol [(17α)-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol] Each light pink tablet contains the following inactive ingredients: calcium stearate, FD&C red no. 40 aluminum lake, lactose monohydrate, microcrystalline cellulose, pregelatinized corn starch, and sodium starch glycolate. Each light yellow tablet contains 1 mg norethindrone acetate and 30 mcg ethinyl estradiol. Each light yellow tablet contains the following inactive ingredients: calcium stearate, D&C yellow no.10 aluminum lake, lactose monohydrate, microcrystalline cellulose, pregelatinized corn starch, and sodium starch glycolate. Each light blue tablet contains 1 mg norethindrone acetate and 35 mcg ethinyl estradiol. Each light blue tablet contains the following inactive ingredients: calcium stearate, FD&C blue no. 2 aluminum lake, lactose monohydrate, microcrystalline cellulose, pregelatinized corn starch, and sodium starch glycolate. Each brown tablet contains crospovidone, ferrous fumarate, hydrogenated vegetable oil, and microcrystalline cellulose. The structural formulas are as follows: Norethindrone Acetate Ethinyl Estradiol C 22 H 28 O 3 Molecular Weight: 340.46 C 20 H 24 O 2 Molecular Weight: 296.40 Each Tri-Legest ® Fe tablet dispenser contains five light pink tablets, seven light yellow tablets, nine light blue tablets, and seven brown tablets. These tablets are to be taken in the following order: one light pink tablet each day for five days, then one light yellow tablet each day for seven days, followed by one light blue tablet each day for nine days, and then one brown tablet each day for seven days. 1 2
How supplied
Tri-Legest ® Fe (norethindrone acetate and ethinyl estradiol tablets, USP and ferrous fumarate tablets [not USP]) is packaged in cartons of five tablet dispensers of 28 tablets each. Each tablet dispenser contains five light pink, round, flat-faced, beveled-edge, unscored tablets debossed with stylized b on one side and 711 on the other side each containing 1 mg of norethindrone acetate and 20 mcg of ethinyl estradiol; seven light yellow, round, flat-faced, beveled-edge, unscored tablets debossed with stylized b on one side and 712 on the other side each containing 1 mg of norethindrone acetate and 30 mcg of ethinyl estradiol; nine light blue, round, flat-faced, beveled-edge, unscored tablets debossed with stylized b on one side and 713 on the other side each containing 1 mg of norethindrone acetate and 35 mcg of ethinyl estradiol; and seven brown, round, flat-faced, beveled-edge, unscored tablets debossed with stylized b on one side and 247 on the other side each containing 75 mg ferrous fumarate. The ferrous fumarate tablets are present to facilitate ease of drug administration via a 28-day regimen, are non-hormonal, and do not serve any therapeutic purpose. NDC 0555-9032-70 Carton of 5 Tablet Dispensers Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature]. Protect from light. Store tablets inside pouch when not in use. REFERENCES AVAILABLE UPON REQUEST . Teva Pharmaceuticals USA, Inc. North Wales, PA 19454 Rev. G 3/2023
Patient information
See patient labeling printed below.
Label text from the FDA structured product label by Teva Pharmaceuticals USA, Inc. (revised Mar 21, 2023). Long sections are shortened; the complete label is on DailyMed.
Tri-Legest Fe NDC products (1)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 0555-9032 | Kit | Teva Pharmaceuticals USA, Inc. | ANDA |
Frequently asked questions
What is Tri-Legest Fe used for?
Tri-Legest ® Fe (norethindrone acetate and ethinyl estradiol tablets, USP and ferrous fumarate tablets [not USP]) is indicated for the prevention of pregnancy in women who elect to use combined oral contraceptives as a method of contraception. Tri-Legest ® Fe is indicated for the treatment of moderate acne vulgaris in females, ≥15 years of age, who have no known contraindications to combined oral…
What are the side effects of Tri-Legest Fe?
Post Marketing 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 4). Three studies compared breast cancer risk between current or recent COC users (<6 months since last use) and never users… See the full label for the complete list.
Who makes Tri-Legest Fe?
Tri-Legest Fe is listed by 1 labeler in the FDA NDC directory, including Teva Pharmaceuticals USA, Inc..