Amethyst Levonorgestrel and Ethinyl Estradiol 90 ug; 20 ug Tablet, 28-count — NDC 0480-3472-24 (Billing 00480-3472-24)

WARNINGS Cigarette smoking increases the risk of serious cardiovascular side effects from oral contraceptive use. This risk increases with age and with the extent of smoking (in epidemiologic studies, 15 or more cigarettes per day was associated with a significantly increased risk) and is quite marked in women over 35 years of age. Women who use oral contraceptives should be strongly advised not to smoke.

The use of oral contraceptives is associated with increased risks of several serious conditions including venous and arterial thrombotic and thromboembolic events (such as myocardial infarction, thromboembolism, stroke, and transient ischemic attack), hepatic neoplasia, gallbladder disease, and hypertension, 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 certain inherited or acquired thrombophilias, hypertension, hyperlipidemias, obesity, diabetes, and surgery or trauma with increased risk of thrombosis (see CONTRAINDICATIONS ).

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 doses of estrogens and progestogens than those in common use today. The effect of long-term use of the oral contraceptives with lower doses 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 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. For further information, the reader is referred to a text on epidemiological methods.

1. Thromboembolic Disorders and Other Vascular Problems Amethyst™ is a non-cyclic oral contraceptive that provides a low daily dose of estrogen and progestin; however, Amethyst™ provides women with more hormonal exposure on a yearly basis (13 additional weeks of hormone intake per year) than conventional cyclic oral contraceptives containing the same strength of synthetic estrogens and similar strength of progestins. 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. 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 infarction 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 nonsmokers over the age of 40 (Figure 3) among women who use oral contraceptives. Figure 3: 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, Lancet, 1 :541-546, 1981. Oral contraceptives may compound the effects of well-known risk factors, such as hypertension, diabetes, hyperlipidemias, age, and obesity.

In… [Excerpted — this section continues on DailyMed.]

ADVERSE REACTIONS 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 6). Three studies compared breast cancer risk between current or recent COC users (<6 months since last use) and never users of COCs (Figure 6). 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 6: Risk of Breast Cancer with Combined Oral Contraceptive Use 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 (see WARNINGS section for additional information) has been associated with the use of oral contraceptives: • Thromboembolic and thrombotic disorders and other vascular problems (including thrombophlebitis and venous thrombosis with or without pulmonary embolism, mesenteric thrombosis, arterial thromboembolism, myocardial infarction, cerebral hemorrhage, cerebral thrombosis, transient ischemic attack) • Carcinoma of the reproductive organs and breasts • Hepatic neoplasia/liver disease (including hepatic adenomas or benign liver tumors) • Ocular lesions (including retinal vascular thrombosis) • Gallbladder disease • Carbohydrate and lipid effects • Elevated blood pressure • Headache including migraine The following adverse reactions have been reported in patients receiving oral contraceptives and are believed to be drug related (alphabetically listed): • Acne • Amenorrhea • Anaphylactic/anaphylactoid reactions, including urticaria, angioedema, and severe reactions with respiratory and circulatory symptoms • Breast changes: tenderness, pain, enlargement, secretion • Budd-Chiari syndrome • Cervical erosion and secretion, change in • Cholestatic jaundice • Chorea, exacerbation of • Colitis • Contact lenses, intolerance to • Corneal curvature (steepening), change in • Dizziness • Edema/fluid retention • Erythema multiforme • Erythema nodosum • Focal nodular hyperplasia • Gastrointestinal symptoms (such as abdominal pain, cramps, and bloating) • Hirsutism • Infertility after discontinuation of treatment, temporary • Lactation, diminution in, when given immediately postpartum • Libido, change in • Melasma/chloasma which may persist • Menstrual flow, change in • Mood changes, including depression • Nausea • Nervousness • Pancreatitis • Porphyria, exacerbation of • Rash (allergic) • Scalp hair, loss of • Serum folate levels, decrease in • Spotting • Systemic lupus erythematosus, exacerbation of • Unscheduled bleeding • Vaginitis, including candidiasis • Varicose veins, aggravation of • Vomiting • Weight or appetite (increase or decrease), change in The following adverse reactions have been reported in users of oral contraceptives: • Cataracts • Cystitis-like syndrome • Dysmenorrhea • Hemolytic uremic syndrome • Hemorrhagic eruption • Optic neuritis, which may lead to partial or complete loss of vision • Premenstrual syndrome • Renal function, impaired 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.

Figure 6

Drug-Drug Interactions See PRECAUTIONS section – Drug Interactions .

9. Drug Interactions Changes in Contraceptive Effectiveness Associated with Coadministration of Other Products: Contraceptive effectiveness may be reduced when hormonal contraceptives are coadministered with antibiotics, anticonvulsants, and other drugs that increase the metabolism of contraceptive steroids. This could result in unintended pregnancy or unscheduled bleeding.

Examples include rifampin, rifabutin, barbiturates, primidone, phenylbutazone, phenytoin, dexamethasone, carbamazepine, felbamate, oxcarbazepine, topiramate, griseofulvin, and modafinil. In such cases a nonhormonal back-up method of birth control should be considered. Several cases of contraceptive failure and unscheduled bleeding have been reported in the literature with concomitant administration of antibiotics such as ampicillin and other penicillins, and tetracyclines.

However, clinical pharmacology studies investigating drug interactions between combined oral contraceptives and these antibiotics have reported inconsistent results. Enterohepatic recirculation of estrogens may also be decreased by substances that reduce gut transit time. Several of the anti-HIV protease inhibitors have been studied with coadministration of oral combination hormonal contraceptives; significant changes (increase and decrease) in the plasma levels of the estrogen and progestin have been noted in some cases.

The safety and efficacy of oral contraceptive products may be affected with coadministration of anti-HIV protease inhibitors. Health care professionals should refer to the label of the individual anti-HIV protease inhibitors for further drug-drug interaction information. Concomitant Use with HCV Combination Therapy – Liver Enzyme Elevation Do not coadminister levonorgestrel and ethinyl estradiol tablets 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 ).

Herbal products containing St. John's Wort (Hypericum perforatum) may induce hepatic enzymes (cytochrome P 450) and p-glycoprotein transporter and may reduce the effectiveness of contraceptive steroids. This may also result in unscheduled bleeding.

Increase in Plasma Levels Associated with Coadministered Drugs: Coadministration of atorvastatin and certain oral contraceptives containing ethinyl estradiol increases AUC values for ethinyl estradiol by approximately 20%. Ascorbic acid and acetaminophen increase the bioavailability of ethinyl estradiol since these drugs act as competitive inhibitors for sulfation of ethinyl estradiol in the gastrointestinal wall, a known pathway of elimination for ethinyl estradiol. CYP 3A4 inhibitors such as indinavir, itraconazole, ketoconazole, fluconazole, and troleandomycin may increase plasma hormone levels.

Troleandomycin may also increase the risk of intrahepatic cholestasis during coadministration with combination oral contraceptives. Changes in Plasma Levels of Coadministered Drugs: Combination hormonal contraceptives containing some synthetic estrogens (e.g., ethinyl estradiol) may inhibit the metabolism of other compounds. Increased plasma concentrations of cyclosporine, prednisolone and other corticosteroids, and theophylline have been reported with concomitant administration of oral contraceptives.

Decreased plasma concentrations of acetaminophen and lamotrigine, and increased clearance of temazepam, salicylic acid, morphine, and clofibric acid, due to induction of conjugation (particularly glucuronidation), have been noted when these drugs were administered with oral contraceptives. The prescribing information of concomitant medications should be consulted to identify potential interactions.

PRECAUTIONS 1. General Patients should be counseled that oral contraceptives do not protect against transmission of HIV (AIDS) and other sexually transmitted diseases (STDs) such as chlamydia, genital herpes, genital warts, gonorrhea, hepatitis B, and syphilis. Scheduled withdrawal bleeding does not occur with the use of Amethyst™, therefore, the absence of withdrawal bleeding cannot be used as a sign of an unexpected pregnancy and as such, unexpected pregnancy may be difficult to recognize.

Although pregnancy is unlikely if Amethyst™ is taken as directed, if for any reason, pregnancy is suspected in a woman using Amethyst™, a pregnancy test should be performed. 2. Physical Examination and Follow-Up A periodic personal and family medical history and complete physical examination are appropriate for all women, including women using oral contraceptives.

The physical examination, however, may be deferred until after initiation of 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 diagnostic 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 hyperlipidemias should be followed closely if they elect to use oral contraceptives.

Some progestogens may elevate LDL levels and may render the control of hyperlipidemias more difficult. (See WARNINGS , 1a., 1d., and 8.) A small proportion of women will have adverse lipid changes while taking oral contraceptives. Nonhormonal contraception should be considered in women with uncontrolled dyslipidemias.

Persistent hypertriglyceridemia may occur in a small population of combination oral contraceptive users. Elevations of plasma triglycerides may lead to pancreatitis and other complications. 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 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 Patients becoming significantly depressed while taking oral contraceptives should stop the medication and use an alternate method of contraception in an attempt to determine whether the symptom is drug related. 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. Gastrointestinal Diarrhea and/or vomiting may reduce hormone absorption resulting in decreased serum concentrations.

9. Drug Interactions Changes in Contraceptive Effectiveness Associated with Coadministration of Other Products: Contraceptive effectiveness may be reduced when hormonal contraceptives are coadministered with antibiotics, anticonvulsants, and other drugs that increase the metabolism of contraceptive steroids. This could result in unintended pregnancy or unscheduled bleeding.

Examples include rifampin, rifabutin, barbiturates, primidone, phenylbutazone, phenytoin, dexamethasone, carbamazepine, felbamate, oxcarbazepine, topiramate, griseofulvin, and modafinil. In such cases a nonhormonal back-up method of birth control should be considered. Several cases of contraceptive failure and unscheduled bleeding have been reported in the literature with concomitant administration of antibiotics such as ampicillin and other penici… [Excerpted — this section continues on DailyMed.]