levonorgestrel and ethinyl estradiol
Pharmaranks rates Levonorgestrel and Ethinyl Estradiol 3.5/5 for recall safety — an independent score from its FDA recall history and its manufacturer's record. Levonorgestrel and Ethinyl Estradiol is a combination medicine containing Ethinyl Estradiol and Levonorgestrel.
Ethinyl Estradiol and Levonorgestrel · by Watson Labs
Generic of Loseasonique
Based on 1 source · Recall-safety score from FDA recall history — this product's own recalls and its manufacturer's record. Not an efficacy or quality rating. methodology →
Key facts
- Active ingredient
- Ethinyl Estradiol and Levonorgestrel
- Form
- Kit
- Strength
- Ethinyl Estradiol 0.02MG; Levonorgestrel 0.09MG
- Type
- Prescription (Rx)
- Brand or generic
- Generic
- Manufacturer
- Watson Labs
- Half-life
- about 36 hours (36 ± 13 hours at steady state) (how long it stays in your system)
- FDA application
- ANDA079218
What is Levonorgestrel and Ethinyl Estradiol?
From the FDA label:Twenty-eight (28) white tablets each containing 90 mcg of levonorgestrel, USP (17α)-(–)13-ethyl-17-hydroxy-18, 19-dinorpregn-4-en-20-yn-3-one, a totally synthetic progestogen, and 20 mcg of ethinyl estradiol, USP (17α)-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol. The inactive ingredients present are croscarmellose sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and povidone. Levonorgestrel, USP C 21 H 28 O 2 M.W. 312.45 Ethinyl Estradiol, USP C 20 H 24 O 2 M.W. 296.40 Levonorgestrel Ethinyl Estradiol
How to use
To achieve maximum contraceptive effectiveness, Amethyst™ (levonorgestrel and ethinyl estradiol tablets) must be taken exactly as directed and at intervals not exceeding 24 hours. The possibility of ovulation and conception prior to initiation of medication should be considered. Women who do not wish to become pregnant after discontinuation should be advised to immediately use another method of birth control. The dosage of Amethyst™ is one white tablet daily without any tablet-free interval. It is recommended that Amethyst™ tablets be taken at the same time each day. Initiation of Therapy Instructions for beginning Amethyst™ are provided in Table 4 below. Table 4 Current contraceptive therapy Amethyst™ start day Nonhormonal back-up method of birth control needed when correctly starting Amethyst™ ? None Day 1 of patient’s menstrual cycle (during the first 24 hours of her period) No 21-day COC regimen OR 28-day COC regimen Day 1 of patient’s withdrawal bleed, at the latest 7 days after her last active tablet No Progestin-only pill Day after taking a progestin-only pill Yes, for the first 7 days of Amethyst™ tablet-taking Implant Day of implant removal Yes, for the first 7 days of Amethyst™ tablet-taking Injection Day the next injection is due Yes, for the first 7 days of Amethyst™ tablet-taking If spotting or unscheduled bleeding occurs, the patient is instructed to continue on…
Side effects
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,…
Warnings
Important safety information
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 particular, some progestogens are known to decrease HDL cholesterol and cause glucose intolerance, while estrogens may create a state of hyperinsulinism. 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. Oral contraceptives must be used with caution in women with cardiovascular disease risk factors. Figure 3 b. Venous Thrombosis and Thromboembolism An increased risk of venous thromboembolic and thrombotic disease associated with the use of oral contraceptives is well established. The risk of venous thrombotic and thromboembolic events is further increased in women with conditions predisposing for venous thrombosis and thromboembolism. 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. 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 approximate incidence of deep-vein thrombosis and pulmonary embolism in users of low dose (<0.05 mg ethinyl estradiol) combination oral contraceptives is up to 4 per 10,000 woman-years compared to 0.5 to 3 per 10,000 woman-years for non-users. However, the incidence is less than that associated with pregnancy (6 per 10,000 woman-years). The excess risk is highest during the first year a woman ever uses a combined oral contraceptive. Venous thromboembolism may be fatal. The risk of thromboembolic disease due to oral contraceptives is not related to length of use and gradually disappears after pill use is stopped. A post-marketing observational study evaluated the risk of venous thromboembolism with Amethyst™ use in two large US automated healthcare claims databases. The study was not completed as planned due to low accrual of Amethyst™ users in these databases and discontinuation of the product from the market due to low usage. At study discontinuation, the crude incidence rate of venous thromboembolism among Amethyst™ users (n=12,281) was 17.6 per 10,000 person-years, compared to 8.8 per 10,000 person-years among the users of cyclic oral contraceptives containing 20 mcg of ethinyl estradiol and a progestogen, and 5.1 per 10,000 person-years among the users of cyclic oral contraceptives containing the progestin levonorgestrel and 20 mcg of ethinyl estradiol. Adjustment for important risk factors or confounders (such as obesity, cardiovascular disease and other diseases) for venous thromboembolism could not be performed due to the small sample size. Although the study results suggest an elevated risk of venous thromboembolism with current Amethyst™ use compared to cyclic oral hormonal contraceptive use, reliable interpretation of the results is significantly limited due to the small sample size and concerns over unmeasured and uncontrolled confounding, as well as questions about the suitability of the comparator selection and the validity of the venous thromboembolism definition. A two-to-four fold increase in relative risk of postoperative thromboembolic complications has been reported with the use of 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, 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 post-partum period is also associated with an increased risk of thromboembolism, oral contraceptives should be started no earlier than four weeks after delivery in women who elect not to breastfeed, or after a midtrimester…
Who should not take Levonorgestrel and Ethinyl Estradiol
Amethyst™ (levonorgestrel and ethinyl estradiol tablets) is contraindicated in females who are known to have or develop the following conditions: Thrombophlebitis or thromboembolic disorders History of deep-vein thrombophlebitis or thromboembolic disorders Cerebrovascular or coronary artery disease (current or past history) Valvular heart disease with thrombogenic complications Thrombogenic rhythm disorders Hereditary or acquired thrombophilias Major surgery with prolonged immobilization Diabetes with vascular involvement Headaches with focal neurological symptoms such as aura Uncontrolled hypertension Current diagnosis of, or history of, breast cancer, which may be hormone-sensitive Carcinoma of the endometrium or other known or suspected estrogen-dependent neoplasia Undiagnosed abnormal genital bleeding Cholestatic jaundice of pregnancy or jaundice with prior pill use Hepatic adenomas or carcinomas, or active liver disease Known or suspected pregnancy Hypersensitivity to any of the components of Amethyst™ 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 ).
Overdose — what happens if you take too much
Symptoms of oral contraceptive overdosage in adults and children may include nausea, vomiting, breast tenderness, dizziness, abdominal pain, drowsiness/fatigue; withdrawal bleeding may occur in females. There is no specific antidote and further treatment of overdose, if necessary, is directed to the symptoms.
U.S. Poison Control: call or text 1-800-222-1222 (free, 24/7). In an emergency call 911. From the FDA label; not medical advice.
Interactions
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.
How long does Ethinyl Estradiol and Levonorgestrel stay in your body?
The elimination half-life of ethinyl estradiol and levonorgestrel is about 36 hours (36 ± 13 hours at steady state) — the time it takes the body to clear about half of it. As a rule of thumb, a medicine is mostly gone after roughly 4 to 5 half-lives, though this varies from person to person with age and kidney or liver function. This is the terminal elimination half-life stated directly for levonorgestrel; the label reports no active metabolite that outlasts the parent, and levonorgestrel is not a prodrug. The number comes from a levonorgestrel/ethinyl estradiol combination oral-contraceptive label (Aviane), where it is attributed specifically to the levonorgestrel component; the single-ingredient OTC emergency-contraceptive labels do not state a half-life. On populations: the label says no formal studies evaluated hepatic or renal impairment, but cautions that steroid hormones may be poorly metabolized in patients with impaired liver function; it notes no apparent pharmacokinetic differences across races, and states nothing about older adults.
This is general information, not medical advice. It doesn’t tell you when a drug test would read negative (tests detect substances for different, often longer, windows) or when it’s safe to take another dose — ask your pharmacist or prescriber. Source: Aviane (levonorgestrel and ethinyl estradiol) label — DailyMed, Clinical Pharmacology / Pharmacokinetics.
Dosage forms
Kit
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
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Frequently asked questions
- How is Levonorgestrel and Ethinyl Estradiol rated?
- pharmaranks gives Levonorgestrel and Ethinyl Estradiol a composite score of 3.5 out of 5, currently based on 1 weighted source (FDA regulatory recall-safety data weighted highest). See our methodology at /how-we-rate.
- Is there a coupon or discount for Levonorgestrel and Ethinyl Estradiol?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Levonorgestrel and Ethinyl Estradiol. To pay less, Levonorgestrel and Ethinyl Estradiol is already a generic — usually the lowest-cost version — so the main levers are comparing cash prices between pharmacies and using a pharmacy discount-card service. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Who makes Levonorgestrel and Ethinyl Estradiol?
- Levonorgestrel and Ethinyl Estradiol is marketed by Watson Labs. You can see Watson Labs's full profile, rating, and other products on pharmaranks.
- Is Levonorgestrel and Ethinyl Estradiol a brand-name or generic drug?
- Levonorgestrel and Ethinyl Estradiol is a generic medication; its active ingredient is Ethinyl Estradiol and Levonorgestrel. Generics contain the same active ingredient as the brand-name original and are usually lower cost.
- Is Levonorgestrel and Ethinyl Estradiol available over the counter?
- No. Levonorgestrel and Ethinyl Estradiol is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
- What forms does Levonorgestrel and Ethinyl Estradiol come in?
- Levonorgestrel and Ethinyl Estradiol is currently marketed as kit, per the FDA's National Drug Code Directory.
- Is Levonorgestrel and Ethinyl Estradiol FDA-registered?
- Levonorgestrel and Ethinyl Estradiol is on record with the U.S. FDA under application number ANDA079218. You can verify this on its official FDA label.
- Has Levonorgestrel and Ethinyl Estradiol been recalled by the FDA?
- Levonorgestrel and Ethinyl Estradiol has no FDA recalls recorded under its own application in the openFDA enforcement database. Its recall-safety score reflects its manufacturer's overall recall record. This is general reference, not medical advice — check the FDA recall database for the latest alerts.
- Is Levonorgestrel and Ethinyl Estradiol safe?
- There's no single safe-or-not verdict. pharmaranks gives Levonorgestrel and Ethinyl Estradiol a recall-safety score of 70/100, based on its FDA recall history (no recalls under its own FDA application) — not an efficacy or side-effect rating. Review its FDA-label side effects and warnings before use, and always consult a licensed professional.
- What are the side effects of Levonorgestrel and Ethinyl Estradiol?
- Levonorgestrel and Ethinyl Estradiol's side effects are taken directly from its FDA label. From the label: 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).… Both common and serious reactions are documented in full on this page. This is general reference from the FDA, not medical advice — always consult a professional.
Clinical content sourced from the FDA label via openFDA (U.S. FDA). View the FDA label on DailyMed → Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
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levonorgestrel and ethinyl estradiol
70/100