DailyMed Label: NORETHINDRONE ACETATE AND ETHINYL ESTRADIOL AND FERROUS FUMARATE

DailyMed Label: NORETHINDRONE ACETATE AND ETHINYL ESTRADIOL

2024

DailyMed Prescription

NORETHINDRONE ACETATE AND ETHINYL ESTRADIOL

norethindrone acetate and ethinyl estradiol

Mylan Pharmaceuticals Inc.

NDC: 0378-7283

NDC: 0378-7283

Norethindrone Acetate and Ethinyl Estradiol Tablets, USP and Ferrous Fumarate Tablets are a progestogen-estrogen combination. Norethindrone Acetate and Ethinyl Estradiol Tablets USP, 1 mg/0.02 mg and Ferrous Fumarate Tablets, 75 mg provide 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 white to off-white tablet contains norethindrone acetate (19-Norpregn-4-en-20-yn-3-one, 17-(acetyloxy)-, (17α)), 1 mg; ethinyl estradiol (19-Norpregna-1,3,5(10)-trien-20-yne-3, 17-diol, (17α)-), 0.02 mg. Also contains compressible sugar, croscarmellose sodium, dl -α-tocopherol, lactose anhydrous, lactose monohydrate, magnesium stearate, povidone K-25, sodium lauryl sulphate. The structural formulas are as follows: Each brown placebo tablet contains colloidal silicon dioxide, croscarmellose sodium, ferrous fumarate, lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone K-90. The ferrous fumarate tablets do not serve any therapeutic purpose. Structural Formula

Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets are indicated for the prevention of pregnancy in women who elect to use oral contraceptives as a method of contraception. Oral contraceptives are highly effective. Table I 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 I: LOWEST EXPECTED AND TYPICAL FAILURE RATES DURING THE FIRST YEAR OF CONTINUOUS USE OF A METHOD Adapted from RA Hatcher et al, Reference 7. % Of Women Experiencing an Unintended Pregnancy in the First Year of Continuous Use Method Lowest Expected The authors’ best guess of the percentage of women expected to experience an accidental pregnancy among couples who initiate a method (not necessarily for the first time) and who use it consistently and correctly during the first year if they do not stop for any other reason. Typical This term represents “typical” couples who initiate use of a method (not necessarily for the first time), who experience an accidental pregnancy during the first year if they do not stop use for any other reason. (No contraception)  (85) (85) Oral contraceptives  3       Combined  0.1 N/A  N/A - Data not available.       progestin only  0.5 N/A  Diaphragm with spermicidal cream or jelly  6 20 Spermicides alone (foam, creams, gels, vaginal suppositories, and vaginal film)  6 26 Vaginal Sponge       nulliparous  9 20       parous 20 40 Implant  0.05 0.05 Injection: depot medroxyprogesterone acetate  0.3 0.3 IUD       progesterone T  1.5 2.0       copper T 380A  0.6 0.8       LNg 20  0.1 0.1 Condom without spermicides       female  5 21       male  3 14 Cervical Cap with spermicidal cream or jelly       nulliparous  9 20       parous  26 40 Periodic abstinence (all methods)  1-9 25 Withdrawal  4 19 Female sterilization  0.5 0.5 Male sterilization  0.10 0.15

The tablet blister pack has been designed to make oral contraceptive 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 blister above the first row of tablets. Note: Each blister card 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 28-Day Dosage Regimen To achieve maximum contraceptive effectiveness, norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets should be taken exactly as directed and at intervals not exceeding 24 hours. Norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets provide a continuous administration regimen consisting of 21 white to off-white tablets of norethindrone acetate and ethinyl estradiol tablets 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 white to off-white tablet from the top row of the blister (labeled Sunday) on the first Sunday after menstrual flow begins. When the menstrual flow begins on Sunday, the first white to off-white tablet is taken on the same day. The patient takes one white to off-white tablet daily for 21 days. The last white to off-white tablet in the blister pack will be taken on a Saturday. Upon completion of all 21 white to off-white 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 white to off-white tablet in the top row. Adhering to this regimen of one white to off-white 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 blister card. She starts taking one white to off-white tablet daily, beginning with the first white to off-white tablet in the top row. After the last white to off-white 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 white to off-white 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 blister. Following this regimen of 21 white to off-white 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 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 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 white to off-white tablets, continue medication without interruption. If the patient forgets to take one or more white to off-white 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 white to off-white tablets are missed. While there is little likelihood of ovulation occurring if only one white to off-white tablet is missed, the possibility of spotting or bleeding is increased. This is particularly likely to occur if two or more consecutive white to off-white tablets are missed. If the patient forgets to take any of the seven brown tablets in week four, those brown tablets that were missed are discarded and one brown tablet is taken each day until the pack is empty. A back-up birth control method is not required during this time. A new pack of tablets should be started no later than the eighth day after the last white to off-white tablet was taken. 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 blister pack 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. Use of Oral Contraceptives in the Event of a Missed Menstrual Period 1. If the patient has not adhered to the prescribed dosage regimen, the possibility of pregnancy should be considered after the first missed period and oral contraceptives should be withheld until pregnancy has been ruled out. 2. If the patient has adhered to the prescribed regimen and misses two consecutive periods, pregnancy should be ruled out before continuing the contraceptive regimen. After several months on treatment, bleeding may be reduced to a point of virtual absence. This reduced flow may occur as a result of medication, in which event it is not indicative of pregnancy.

• Oral contraceptives are contraindicated in women who currently have the following conditions: • Thrombophlebitis or thromboembolic disorders • A past history of deep vein thrombophlebitis or thromboembolic disorders • Cerebral vascular or coronary artery disease • 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 • 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 ).

It is good medical practice for all women to have annual history and physical examinations, 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 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. Women who are being treated for hyperlipidemia 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. 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. 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. Contact lens wearers who develop visual changes or changes in lens tolerance should be assessed by an ophthalmologist. 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 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. Administration of troglitazone with an oral contraceptive containing ethinyl estradiol and norethindrone reduced the plasma concentrations of both by approximately 30%, which could result in a reduction in contraceptive effectiveness. Pregnancy while taking oral contraceptives has been reported when the 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. Coadministration of atorvastatin and an oral contraceptive increased AUC values for norethindrone and ethinyl estradiol by approximately 30% and 20%, respectively. Liver Enzyme Elevation Co-administration of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets with HCV drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir is contraindicated due to potential for ALT elevations (see Warnings, RISK OF LIVER ENZYME ELEVATIONS WITH CONCOMITANT HEPATITIS C TREATMENT ). Co-administration of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets and glecaprevir/pibrentasvir is not recommended due to potential for ALT elevations. 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. Oral contraceptive combinations containing ethinyl estradiol may inhibit the metabolism of other compounds. Increased plasma concentrations of cyclosporine, prednisolone, and theophylline have been reported with concomitant administration of oral contraceptives. In addition, oral contraceptives may induce the conjugation of other compounds. Decreased plasma concentrations of acetaminophen and increased clearance of temazepam, salicylic acid, morphine, and clofibric acid have been noted when these drugs were administered with oral contraceptives. Certain endocrine and liver function tests and blood components may be affected by 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), T4 by column or by radioimmunoassay. Free T3 resin uptake is decreased, reflecting the elevated TBG; free T4 concentration is unaltered. c. Other binding proteins may be elevated in serum. d. Sex-binding globulins are increased and result in elevated levels of total circulating sex steroids and corticoids; however, free or biologically active levels remain unchanged. e. Triglycerides may be increased. f. Glucose tolerance may be decreased. g. Serum folate levels may be depressed by oral contraceptive therapy. This may be of clinical significance if a woman becomes pregnant shortly after discontinuing oral contraceptives. See WARNINGS section. Discontinue norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate tablets if pregnancy occurs because there is no reason to use COCs in pregnancy. See WARNINGS section. Small amounts of oral contraceptive steroids have been identified in human milk, and a few adverse effects on the child have been reported, including jaundice and breast enlargement. In addition, oral contraceptives given in the postpartum period may interfere with lactation by decreasing the quantity and quality of breast milk. If possible, the nursing mother should be advised not to use oral contraceptives but to use other forms of contraception until she has completely weaned her child. Safety and efficacy of norethindrone acetate and ethinyl estradiol tablets and ferrous fumarate 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.

An increased risk of the following serious adverse reactions has been associated with the use of oral contraceptives (see

Norethindrone Acetate and Ethinyl Estradiol Tablets USP, 1 mg/0.02 mg and Ferrous Fumarate Tablets, 75 mg are packaged in a carton of three pouches (NDC 0378-7283-53); each pouch contains a blister pack of 28 tablets. Each blister pack contains 21 white to off-white, round, flat-faced, unscored tablet debossed with 239 on one side and plain on the other side and 7 brown, round, flat-faced, unscored tablets debossed with 291 on one side and plain on the other side. Each brown tablet contains 75 mg ferrous fumarate. Store at 20° to 25°C (68° to 77°F). [See USP Controlled Room Temperature.]

Combination 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). The pharmacokinetics of norethindrone acetate and ethinyl estradiol tablets have not been characterized; however, the following pharmacokinetic information regarding norethindrone acetate and ethinyl estradiol is taken from the literature. 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 (1). Norethindrone acetate and ethinyl estradiol are subject to first-pass metabolism after oral dosing, resulting in an absolute bioavailability of approximately 64% for norethindrone and 43% for ethinyl estradiol (1-3). Volume of distribution of norethindrone and ethinyl estradiol ranges from 2 to 4 L/kg (1-3). Plasma protein binding of both steroids is extensive (greater than 95%); norethindrone binds to both albumin and sex hormone binding globulin, whereas ethinyl estradiol binds only to albumin (4). 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 (5). 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 (6). Norethindrone and ethinyl estradiol are excreted in both urine and feces, primarily as metabolites (5, 6). Plasma clearance values for norethindrone and ethinyl estradiol are similar (approximately 0.4 L/hr/kg) (1-3). The effect of race on the disposition of norethindrone acetate and ethinyl estradiol tablets has not been evaluated. The effect of renal disease on the disposition of norethindrone acetate and ethinyl estradiol tablets has not been evaluated. In premenopausal women with chronic renal failure undergoing peritoneal dialysis who received multiple doses of an 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. The effect of hepatic disease on the disposition of norethindrone acetate and ethinyl estradiol tablets has not been evaluated. However, ethinyl estradiol and norethindrone may be poorly metabolized in patients with impaired liver function. Numerous drug-drug interactions have been reported for oral contraceptives. A summary of these is found under PRECAUTIONS, Drug Interactions.

This product (like all oral contraceptives) is intended to prevent pregnancy. It does not protect against HIV infection (AIDS) and other sexually transmitted infections. 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. Oral contraceptives, also known as “birth control pills” or “the pill”, are taken to prevent pregnancy and, when taken correctly, have a failure rate of about 1% per year when used without missing any pills. The typical failure rate of large numbers of pill users is less than 3% per year when women who miss pills are included. For most women oral contraceptives are also free of serious or unpleasant side effects. However, forgetting to take pills considerably increases the chances of pregnancy. For the majority of women, oral contraceptives can be taken safely. But there are some women who are at high risk of developing certain serious diseases that can be life-threatening or may cause temporary or permanent disability. The risks associated with taking oral contraceptives increase significantly if you: • Smoke • Have high blood pressure, diabetes, high cholesterol • Have or have had clotting disorders, heart attack, stroke, angina pectoris, cancer of the breast, jaundice, or malignant or benign liver tumors. You should not take the pill if you suspect you are pregnant or have unexplained vaginal bleeding. Most side effects of the pill are not serious. The most common side effects are nausea, vomiting, bleeding between menstrual periods, weight gain, breast tenderness, and difficulty wearing contact lenses. These side effects, especially nausea, vomiting, and breakthrough bleeding may subside within the first three months of use. The serious side effects of the pill occur very infrequently, especially if you are in good health and are young. However, you should know that the following medical conditions have been associated with or made worse by the pill: 1. Blood clots in the legs (thrombophlebitis), lungs (pulmonary embolism), stoppage or rupture of a blood vessel in the brain (stroke), blockage of blood vessels in the heart (heart attack or angina pectoris) or other organs of the body. As mentioned above, smoking increases the risk of heart attacks and strokes and subsequent serious medical consequences. 2. Liver tumors, which may rupture and cause severe bleeding. A possible but not definite association has been found with the pill and liver cancer. However, liver cancers are extremely rare. The chance of developing liver cancer from using the pill is thus even rarer. 3. High blood pressure, although blood pressure usually returns to normal when the pill is stopped. The symptoms associated with these serious side effects are discussed in the detailed leaflet given to you with your supply of pills. Notify your doctor or healthcare provider if you notice any unusual physical disturbances while taking the pill. In addition, drugs such as rifampin, as well as some anticonvulsants and some antibiotics, may decrease oral contraceptive effectiveness. There may be slight increases in the risk of breast cancer among current users of hormonal birth control pills with longer duration of use of 8 years or more. Some studies have found an increase in the risk of developing cancer of the cervix in women taking the pill, but this finding may be related to differences in sexual behavior or other factors not related to use of the pill. Taking the pill provides some important non-contraceptive benefits. These include less painful menstruation, less menstrual blood loss and anemia, fewer pelvic infections, and fewer cancers of the ovary and the lining of the uterus. Be sure to discuss any medical condition you may have with your healthcare provider. Your healthcare provider will take a medical and family history and examine you before prescribing oral contraceptives. The physical examination may be delayed to another time if you request it and your healthcare provider believes that it is a good medical practice to postpone it. You should be reexamined at least once a year while taking oral contraceptives. The detailed patient information leaflet gives you further information which you should read and discuss with your healthcare provider. This product (like all oral contraceptives) is intended to prevent pregnancy. It does not protect against transmission of HIV (AIDS) and other sexually transmitted infections such as Chlamydia, genital herpes, genital warts, gonorrhea, hepatitis B and syphilis.

NDC 0378-7283-53 Rx only Norethindrone Acetate and Ethinyl Estradiol Tablets, USP and Ferrous Fumarate Tablets* 1 mg /0.02 mg Each white to off-white tablet contains norethindrone acetate 1 mg and ethinyl estradiol 0.02 mg. Each brown tablet contains ferrous fumarate USP, 75 mg. Each blister pack contains 21 white to off-white tablets and 7 brown tablets. * Ferrous fumarate tablets are not USP for dissolution and assay. This product (like all oral contraceptives) is intended to prevent pregnancy. It does not protect against HIV infection (AIDS) and other sexually transmitted diseases. 3 pouches, each pouch contains one blister pack of 28 tablets Manufactured for: Mylan Pharmaceuticals Inc. Morgantown, WV 26505 U.S.A. Made in India Code No.: GUJ-DRUGS/G/28/1297 Mylan.com Carton