Zovia 1 / 35E

Name: Zovia 1 / 35E

Zovia 1/35E Description

Zovia® 1/35 (28 Day Regimen) (ethynodiol diacetate and ethinyl estradiol tablets USP): Each light yellow tablet contains 1 mg of ethynodiol diacetate, USP and 35 mcg of ethinyl estradiol, USP. The inactive ingredients include anhydrous lactose, D&C yellow no. 10 aluminum lake, magnesium stearate, microcrystalline cellulose, polacrilin potassium, and povidone. Each white tablet is a placebo containing only inert ingredients as follows: anhydrous lactose, hypromellose, magnesium stearate, and microcrystalline cellulose.

The chemical name for ethynodiol diacetate, USP is 19-nor-17α-pregn-4-en-20-yne-3β, 17-diol diacetate, and for ethinyl estradiol, USP it is 19-nor-17α-pregna-1, 3, 5 (10)-trien-20-yne-3, 17-diol. The structural formulas are as follows:

Ethynodiol Diacetate, USP

C24H32O4 M.W. 384.51

Ethinyl Estradiol, USP

C20H24O2 M.W. 296.40

Precautions

1. Physical Examination and Follow-Up

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.

2. 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.

3. Liver Function

If jaundice develops in any woman receiving oral contraceptives, they should be discontinued. Steroids may be poorly metabolized in patients with impaired liver function and should be administered with caution in such patients. Cholestatic jaundice has been reported after combined treatment with oral contraceptives and troleandomycin. Hepatotoxicity following a combination of oral contraceptives and cyclosporine has also been reported.

4. 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 that might be aggravated by fluid retention, such as convulsive disorders, migraine syndrome, asthma, or cardiac, hepatic, or renal dysfunction.

5. Emotional Disorders

Women with a history of depression should be carefully observed and the drug discontinued if depression recurs to a serious degree.

6. Contact Lenses

Contact lens wearers who develop visual changes or changes in lens tolerance should be assessed by an ophthalmologist.

7. Drug Interactions

Reduced efficacy and increased incidence of breakthrough bleeding and menstrual irregularities have been associated with concomitant use of rifampin. A similar association, though less marked, has been suggested for barbiturates, phenylbutazone, phenytoin sodium, and possibly with griseofulvin, ampicillin, and tetracyclines. Administration of troglitazone concomitantly with a combination oral contraceptive (estrogen and progestin) reduced the plasma concentrations of both hormones by approximately 30%. This could result in loss of contraceptive efficacy.

Concomitant Use with HCV Combination Therapy – Liver Enzyme Elevation

Do not co-administer Zovia 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).

8. Laboratory Test Interactions

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 III; increased 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 the serum. d) Sex-steroid 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 and phospholipids may be increased. f) Glucose tolerance may be decreased. g) Serum folate levels may be depressed. This may be of clinical significance if a woman becomes pregnant shortly after discontinuing oral contraceptives. h) Increased sulfobromophthalein and other abnormalities in liver function tests may occur. i) Plasma levels of trace minerals may be altered. j) Response to the metyrapone test may be reduced.

9. Carcinogenesis

See WARNINGS.

10. Pregnancy

Teratogenic Effects

Pregnancy Category X

(See CONTRAINDICATIONS and WARNINGS.)

11. Nursing Mothers

Small amounts of oral contraceptive steroids have been identified in the milk of nursing mothers141-143 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.

12. Pediatric Use

Safety and efficacy of Zovia has 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.

13. Venereal Diseases

Oral contraceptives are of no value in the prevention or treatment of venereal disease. The prevalence of cervical Chlamydia trachomatis and Neisseria gonorrhoeae in oral contraceptive users is increased several-fold.144, 145 It should not be assumed that oral contraceptives afford protection against pelvic inflammatory disease from chlamydia.144 Patients should be counseled that this product does not protect against HIV infection (AIDS) and other sexually transmitted diseases.

14. General

a. The pathologist should be advised of oral contraceptive therapy when relevant specimens are submitted.

b. Treatment with oral contraceptives may mask the onset of the climacteric. (See WARNINGS regarding risks in this age group.)

Adverse Reactions

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

• Thrombophlebitis and thrombosis • Arterial thromboembolism • Pulmonary embolism • Myocardial infarction and coronary thrombosis • Cerebral hemorrhage • Cerebral thrombosis • Hypertension • Gallbladder disease • Benign and malignant liver tumors, and other hepatic lesions

There is evidence of an association between the following conditions and the use of oral contraceptives, although additional confirmatory studies are needed:

• Mesenteric thrombosis • Neuro-ocular lesions (e.g., retinal thrombosis and optic neuritis)

The following adverse reactions have been reported in patients receiving 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 during or after use • Temporary infertility after discontinuation of use • Edema • Chloasma or melasma, which may persist • Breast changes: tenderness, enlargement, secretion • Change in weight (increase or decrease) • Change in cervical erosion or secretion • Diminution in lactation when given immediately postpartum • Cholestatic jaundice • Migraine • Rash (allergic) • Mental depression • Reduced tolerance to carbohydrates • Vaginal candidiasis • Change in corneal curvature (steepening) • Intolerance to contact lenses

The following adverse reactions or conditions have been reported in users of oral contraceptives and the association has been neither confirmed nor refuted:

• Premenstrual 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 • Acne • Changes in libido • Colitis • Budd-Chiari syndrome • Endocervical hyperplasia or ectropion

Zovia 1/35E Dosage and Administration

To achieve maximum contraceptive effectiveness, oral contraceptives must be taken exactly as directed and at intervals of 24 hours.

IMPORTANT: If the Sunday start schedule is selected, the patient should be instructed to use an additional method of protection until after the first week of administration in the initial cycle. The possibility of ovulation and conception prior to initiation of use should be considered.

Zovia 1/35 (28 Day Regimen) (ethynodiol diacetate and ethinyl estradiol tablets)

Dosage Schedule

The Zovia 1/35 (28 Day Regimen) tablet dispenser contains 21 light yellow active tablets arranged in three numbered rows of 7 tablets each, followed by a fourth row of 7 white placebo tablets.

Days of the week are printed above the tablets, starting with Sunday on the left.

28 Day Schedule

For a DAY 1 START, count the first day of menstrual flow as Day 1 and the first tablet (light yellow) is then taken on Day 1. For a SUNDAY START when menstrual flow begins on or before Sunday, the first tablet (light yellow) is taken on that day. With either a DAY 1 START or SUNDAY START, 1 tablet (light yellow) is taken each day at the same time for 21 days. Then the white tablets are taken for 7 days, whether bleeding has stopped or not. After all 28 tablets have been taken, whether bleeding has stopped or not, the same dosage schedule is repeated beginning on the following day.

Special Notes

Spotting, Breakthrough Bleeding, or Nausea

If spotting (bleeding insufficient to require a pad), breakthrough bleeding (heavier bleeding similar to a menstrual flow), or nausea occurs the patient should continue taking her tablets as directed. The incidence of spotting, breakthrough bleeding or nausea is minimal, most frequently occurring in the first cycle. Ordinarily spotting or breakthrough bleeding will stop within a week. Usually the patient will begin to cycle regularly within two to three courses of tablet-taking. In the event of spotting or breakthrough bleeding organic causes should be borne in mind. (See WARNINGS, No. 12.)

Missed Menstrual Periods

 Withdrawal flow will normally occur 2 or 3 days after the last active tablet is taken. Failure of withdrawal bleeding ordinarily does not mean that the patient is pregnant, providing the dosage schedule has been correctly followed. (See WARNINGS, No. 7.)

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.

If the patient has adhered to the prescribed regimen and misses two consecutive periods, pregnancy should be ruled out before continuing the contraceptive regimen.

The first intermenstrual interval after discontinuing the tablets is usually prolonged; consequently, a patient for whom a 28 day cycle is usual might not begin to menstruate for 35 days or longer. Ovulation in such prolonged cycles will occur correspondingly later in the cycle. Posttreatment cycles after the first one, however, are usually typical for the individual woman prior to taking tablets. (See WARNINGS, No. 12.)

Missed Tablets

 If a woman misses taking one active tablet, the missed tablet should be taken as soon as it is remembered. In addition, the next tablet should be taken at the usual time. If two consecutive active tablets are missed in week 1 or week 2 of the dispenser, the dosage should be doubled for the next 2 days. The regular schedule should then be resumed, but an additional method of protection must be used as backup for the next 7 days if she has sex during that time or she may become pregnant.

If two consecutive active tablets are missed in week 3 of the dispenser or three consecutive active tablets are missed during any of the first 3 weeks of the dispenser, direct the patient to do one of the following: Day 1 Starters should discard the rest of the dispenser and begin a new dispenser that same day; Sunday Starters should continue to take 1 tablet daily until Sunday, discard the rest of the dispenser and begin a new dispenser that same day. The patient may not have a period this month; however, if she has missed two consecutive periods, pregnancy should be ruled out. An additional method of protection must be used as a backup for the next 7 days after the tablets are missed if she has sex during that time or she may become pregnant.

While there is little likelihood of ovulation if only one active tablet is missed, the possibility of spotting or breakthrough bleeding is increased and should be expected if two or more successive active tablets are missed. However, the possibility of ovulation increases with each successive day that scheduled active tablets are missed.

If one or more placebo tablets of Zovia are missed, the Zovia schedule should be resumed on the eighth day after the last light yellow tablet was taken. Omission of placebo tablets in the 28 tablet courses does not increase the possibility of conception provided that this schedule is followed.

How is Zovia 1/35E Supplied

Zovia® 1/35 (28 Day Regimen) (ethynodiol diacetate and ethinyl estradiol tablets USP) is packaged in cartons of six blister card dispensers. Each blister card dispenser contains 21 light yellow, round, flat-faced, beveled-edge, unscored tablets, debossed with stylized b on one side and 14 on the other side and 7 white, round, flat-faced, beveled-edge, unscored placebo tablets, debossed with stylized b on one side and 143 on the other side. Each light yellow tablet contains 1 mg of ethynodiol diacetate, USP and 0.035 mg of ethinyl estradiol, USP. Each white tablet contains inert ingredients.

Available in cartons of six blisters

NDC 51862-260-06

Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature].

KEEP THIS AND ALL MEDICATIONS OUT OF THE REACH OF CHILDREN.

For the Consumer

Applies to ethinyl estradiol / ethynodiol: oral tablet

Along with its needed effects, ethinyl estradiol / ethynodiol may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking ethinyl estradiol / ethynodiol:

Incidence not known
  • Absent, missed, or irregular menstrual periods
  • anxiety
  • bloody stools
  • blurred vision
  • breast tenderness, enlargement, discharge
  • changes in skin color, pain, tenderness, or swelling of the foot or leg
  • chest pain or discomfort
  • chills
  • clay-colored stools
  • confusion
  • cough
  • dark or cloudy urine
  • decrease in urine output or decrease in urine-concentrating ability
  • diarrhea
  • difficulty in speaking
  • dizziness or lightheadedness
  • double vision
  • fainting
  • fast heartbeat
  • fever
  • headache, severe and throbbing
  • inability to move the arms, legs, or facial muscles
  • inability to speak
  • itching of the vagina or outside the genitals
  • loss of appetite
  • nausea
  • nervousness
  • pain during sexual intercourse
  • pain or discomfort in the arms, jaw, back or neck
  • pounding in the ears
  • slow or fast heartbeat
  • slow speech
  • stomach pain and tenderness
  • stopping of menstrual bleeding
  • sweating
  • swelling
  • swelling, pain, or tenderness in the upper abdominal area
  • tenderness, pain, swelling, warmth, skin discoloration, and prominent superficial veins over the affected area
  • thick, white curd-like vaginal discharge without odor or with mild odor
  • troubled breathing
  • unpleasant breath odor
  • unusual tiredness or weakness
  • vomiting
  • vomiting of blood
  • yellow eyes or skin

Some side effects of ethinyl estradiol / ethynodiol may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Incidence not known
  • Acne
  • changes in appetite
  • changes in weight
  • decreased interest in sexual intercourse
  • decreased milk production
  • light vaginal bleeding between regular menstrual periods
  • loss in sexual ability, desire, drive, or performance
  • mental depression
  • patchy brown or dark brown discoloration of the skin

For Healthcare Professionals

Applies to ethinyl estradiol / ethynodiol: oral tablet

Other

Many of the adverse effects experienced by women on oral contraceptive combination products have been related to a relative excess or deficiency of the estrogen and progestin components of these formulations. The following categorizes many of the frequent adverse effects by relative excess or deficiency of these components.

Progestin Excess:

Acne, oily skin
Breast tenderness
Depression
Tiredness, fatigue
Hair loss
Hypertension
Increased appetite
Weight gain
Cholestatic jaundice

Progestin Deficiency:

Late breakthrough bleeding
Amenorrhea
Hypermenorrhea

Estrogen Excess:

Nausea
Headache
Melasma
Hypertension
Breast tenderness
Edema

Estrogen Deficiency:

Early/mid-cycle breakthrough bleeding
Increased spotting
Hypomenorrhea[Ref]

General

A number of studies have suggested that use of oral contraceptives decreases the risk of ovarian cancer. Specifically, the risk of epithelial ovarian cancers is decreased by 40%. The protection against ovarian cancer may last for 10 to 15 years after discontinuation of oral contraceptives. After long term use (12 years), the risk of ovarian cancer is decreased by as much as 80%.

The risk of endometrial cancer is decreased by approximately 50%. Protection may last for 15 years after discontinuation and may be greatest for nulliparous women who may be at higher risk for endometrial carcinoma than other women.

The incidence of hospitalization for pelvic inflammatory disease is approximately 50% lower in women taking oral contraceptives. The reason for the decrease in the frequency (or severity) of pelvic inflammatory disease in women taking oral contraceptives has not been fully elucidated.

Some recent studies have suggested that the decrease in frequency of functional ovarian cysts reported with some older formulations may not occur in women taking newer low dose formulations.

One recent study (The Nurses' Health Study) has suggested that long term use of oral contraceptives is safe and does not adversely affect long term risk for mortality.[Ref]

General side effects may have included several non-contraceptive health benefits. These benefits may have included protection against two malignant neoplasms (endometrial carcinoma and ovarian cancer). In addition, use of oral contraceptive combinations decreases the frequency of benign breast tumors, ovarian cysts, ectopic pregnancy, menstrual irregularity, iron deficiency anemia, dysmenorrhea, and pelvic inflammatory disease.[Ref]

Gastrointestinal

Gastrointestinal side effect have included nausea, which occurred in approximately 10% of treated women and was more frequent during the first cycles of therapy. Some early reports suggested an association between oral contraceptive use and gallbladder disease.[Ref]

Cases of oral contraceptive-induced esophageal ulceration and geographic tongue have been reported rarely.

More recent studies have suggested that the risk of gallbladder disease is minimal.[Ref]

Oncologic

A number of studies have examined a possible relationship between the use of oral contraceptives and the development of breast cancer. Many of the studies have reported conflicting results. A committee of the World Health Organization evaluated these studies and the risks of breast cancer and concluded that: "Numerous studies have found no overall association between oral contraceptive use and risk of breast cancer." In addition, the same committee also examined a possible relationship between oral contraceptive use and neoplasms of the uterine cervix and concluded that: "There are insufficient data to draw any firm conclusions regarding the effects of combined oral contraceptives on the risk of cervical adenocarcinoma."

The World Health Organization committee also noted that some studies "have found a weak association between long-term use of oral contraceptives and breast cancer diagnosed before the age of 36, and perhaps up to the age 45....It is unclear whether this observed association is attributable to bias, the development of new cases of cancer, or accelerated growth of existing cancers."

The World Health Organization committee further concluded that there is no increased risk of breast cancer in women over the age of 45 who have previously taken oral contraceptives. In addition, studies suggest that use of oral contraceptives does not place specific groups of women (like those with a family history of breast cancer) at higher or lower risk, and variations in the hormonal content of oral contraceptives do not influence the risk of breast cancer.

In general, studies evaluating the potential risk of cervical cancer in patients taking oral contraceptives have been complicated by the large number of confounding factors which make investigations into the epidemiology of this neoplasm difficult. Some studies have suggested that women taking oral contraceptives are at increased risk of dysplasia, epidermoid carcinoma, and adenocarcinoma of the cervix. However, other studies have not found such an association.[Ref]

Oncologic side effects have included reports of breast cancer.[Ref]

Cardiovascular

Detailed information concerning the effects of oral contraceptive therapy on lipid metabolism is available in the Endocrine paragraph of this side effect monograph.

Some early investigations of women taking high dose estrogen combinations (50 mcg or more of ethinyl estradiol or equivalent daily) suggested that such women may be at increased risk of cardiovascular complications (myocardial infarction, stroke, and vascular thrombosis, including venous thromboembolism). However, more recent large investigations of women taking low dose estrogen combinations have suggested that oral contraceptive use is not associated with an increased risk of serious cardiovascular complications in healthy non smoking women up to the age of 45. (For women aged 35 to 44 who smoke or who have preexisting systemic diseases that may affect the cardiovascular system, use of oral contraceptives is not recommended.)

However, some investigators have suggested that even the new low dose products may result in adverse effects on lipid metabolism and should prompt careful review of a woman's cardiovascular risk factors before a decision to use oral contraceptive combinations is made.

The frequency of both subarachnoid hemorrhage and thrombotic stroke has been reported by some investigators to be higher in women taking oral contraceptive hormones. However, other investigators have suggested that the risk of these effects for women using newer low dose formulations are very small for young women without underlying cardiovascular disease or other risk factors.[Ref]

Cardiovascular side effects of the estrogen component of this combination drug have included significant hypertension. However, significant blood pressure increases generally occurred only in women receiving high-dose estrogen products (50 mcg or more of ethinyl estradiol or equivalent daily). Estrogens have also been associated with edema. In addition, exogenous estrogens may have exerted cardio-protective effects by causing favorable changes in lipid profiles. These beneficial effects, however, may have been partially or completely offset by alterations in lipid profiles induced by exogenous progestins.[Ref]

Endocrine

Endocrine side effects have included complex alterations in plasma lipid profiles and carbohydrate metabolism. In addition, oral contraceptive use has been reported to cause conception delay.[Ref]

All the progestins which occur in commercially available oral contraceptive combinations have adverse effects on lipid profiles. Specifically, these progestins exert antiestrogen and androgen effects and decrease HDL (and HDL2) cholesterol levels and increase LDL cholesterol levels. However, the estrogens in oral contraceptive combinations exert opposing effects. Consequently, alterations in lipid profiles are related to the relative amount and potency of the specific estrogen and progestin in a given product. (Ethynodiol exerts moderate progestin and androgen effects and a weak antiestrogen effect.)

A number of investigations have suggested that oral contraceptive combinations may decrease glucose tolerance. However, some recent studies with low dose preparations have suggested that decreases in glucose tolerance due to oral contraceptive combinations are generally minimal.

Despite the potentially adverse effects of oral contraceptives on lipid levels and glucose tolerance, some investigators have suggested that young diabetic women without existing vascular disease or severe lipidemias may be candidates for low dose oral contraceptive combinations provided that they receive close monitoring for adverse metabolic effects.[Ref]

Hepatic

The rate of death due to hepatocellular carcinoma in the United States has not changed during the last 25 years (a time during which use of oral contraceptive hormones has increased dramatically).

A committee of the World Health Organization has reported that in developing countries where hepatitis B virus infection and hepatocellular carcinoma are common, "short term use of oral contraceptives does not appear to be associated with an increased risk. Data on the effects of long term use are scarce."

A recent Italian case-control study of women with hepatocellular carcinoma has suggested that the relative risk of hepatocellular carcinoma is 2.2 for oral contraceptive users compared to women who never used oral contraceptives.

A similar American case-control study from 1989 also reported a strong association between oral contraceptive use and hepatocellular carcinoma but concluded that: "If this observed association is causal, the actual number of cases of liver cancer in the United States attributable to oral contraceptive use is small. Therefore, these findings do not have public health importance in the United States and other Western nations."[Ref]

Hepatic side effects have included focal nodular hyperplasia, intrahepatic cholestasis, liver cell adenomas, hepatic granulomas, hepatic hemangiomas and well-differentiated hepatocellular carcinomas.[Ref]

Hematologic

Hematologic side effects have included thromboembolism. However, because the dose of exogenous estrogens is low in most commercially available preparations, the risk has been minimal for most women (except women who are over age 35 and smoke and women with a previous history of thrombotic diseases).[Ref]

Cases of venous thrombosis, pulmonary embolism (sometimes fatal), and arterial thrombosis have been reported rarely.

Previous thrombotic disease is considered a contraindication to use of oral contraceptive combinations.[Ref]

Genitourinary

Some women experience oligomenorrhea and amenorrhea following termination or oral contraceptive use.[Ref]

Genitourinary side effects have included breakthrough bleeding and spotting, especially during the first several cycles of oral contraceptive use. Non-hormonal causes of such bleeding should be excluded.[Ref]

Psychiatric

Psychiatric side effects have included depression and precipitation of panic disorder.[Ref]

Immunologic

Immunologic side effects have included systemic lupus erythematosus, which has been reported rarely.[Ref]

Other

Other side effects have included a case of fatal pulmonary occlusive disease associated with oral contraceptive therapy.[Ref]

Nervous system

Nervous system side effects have included chorea, which has been reported once in association with oral contraceptives.[Ref]

Ocular

Ocular side effects have included retinal thrombosis, which has been reported rarely. In addition, the manufacturers of oral contraceptive products have reported that some patients develop changes in contact lens tolerance.[Ref]

Some side effects of Zovia 1 / 35E may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

For Healthcare Professionals

Applies to ethinyl estradiol / ethynodiol: oral tablet

Other

Many of the adverse effects experienced by women on oral contraceptive combination products have been related to a relative excess or deficiency of the estrogen and progestin components of these formulations. The following categorizes many of the frequent adverse effects by relative excess or deficiency of these components.

Progestin Excess:

Acne, oily skin
Breast tenderness
Depression
Tiredness, fatigue
Hair loss
Hypertension
Increased appetite
Weight gain
Cholestatic jaundice

Progestin Deficiency:

Late breakthrough bleeding
Amenorrhea
Hypermenorrhea

Estrogen Excess:

Nausea
Headache
Melasma
Hypertension
Breast tenderness
Edema

Estrogen Deficiency:

Early/mid-cycle breakthrough bleeding
Increased spotting
Hypomenorrhea[Ref]

General

A number of studies have suggested that use of oral contraceptives decreases the risk of ovarian cancer. Specifically, the risk of epithelial ovarian cancers is decreased by 40%. The protection against ovarian cancer may last for 10 to 15 years after discontinuation of oral contraceptives. After long term use (12 years), the risk of ovarian cancer is decreased by as much as 80%.

The risk of endometrial cancer is decreased by approximately 50%. Protection may last for 15 years after discontinuation and may be greatest for nulliparous women who may be at higher risk for endometrial carcinoma than other women.

The incidence of hospitalization for pelvic inflammatory disease is approximately 50% lower in women taking oral contraceptives. The reason for the decrease in the frequency (or severity) of pelvic inflammatory disease in women taking oral contraceptives has not been fully elucidated.

Some recent studies have suggested that the decrease in frequency of functional ovarian cysts reported with some older formulations may not occur in women taking newer low dose formulations.

One recent study (The Nurses' Health Study) has suggested that long term use of oral contraceptives is safe and does not adversely affect long term risk for mortality.[Ref]

General side effects may have included several non-contraceptive health benefits. These benefits may have included protection against two malignant neoplasms (endometrial carcinoma and ovarian cancer). In addition, use of oral contraceptive combinations decreases the frequency of benign breast tumors, ovarian cysts, ectopic pregnancy, menstrual irregularity, iron deficiency anemia, dysmenorrhea, and pelvic inflammatory disease.[Ref]

Gastrointestinal

Gastrointestinal side effect have included nausea, which occurred in approximately 10% of treated women and was more frequent during the first cycles of therapy. Some early reports suggested an association between oral contraceptive use and gallbladder disease.[Ref]

Cases of oral contraceptive-induced esophageal ulceration and geographic tongue have been reported rarely.

More recent studies have suggested that the risk of gallbladder disease is minimal.[Ref]

Oncologic

A number of studies have examined a possible relationship between the use of oral contraceptives and the development of breast cancer. Many of the studies have reported conflicting results. A committee of the World Health Organization evaluated these studies and the risks of breast cancer and concluded that: "Numerous studies have found no overall association between oral contraceptive use and risk of breast cancer." In addition, the same committee also examined a possible relationship between oral contraceptive use and neoplasms of the uterine cervix and concluded that: "There are insufficient data to draw any firm conclusions regarding the effects of combined oral contraceptives on the risk of cervical adenocarcinoma."

The World Health Organization committee also noted that some studies "have found a weak association between long-term use of oral contraceptives and breast cancer diagnosed before the age of 36, and perhaps up to the age 45....It is unclear whether this observed association is attributable to bias, the development of new cases of cancer, or accelerated growth of existing cancers."

The World Health Organization committee further concluded that there is no increased risk of breast cancer in women over the age of 45 who have previously taken oral contraceptives. In addition, studies suggest that use of oral contraceptives does not place specific groups of women (like those with a family history of breast cancer) at higher or lower risk, and variations in the hormonal content of oral contraceptives do not influence the risk of breast cancer.

In general, studies evaluating the potential risk of cervical cancer in patients taking oral contraceptives have been complicated by the large number of confounding factors which make investigations into the epidemiology of this neoplasm difficult. Some studies have suggested that women taking oral contraceptives are at increased risk of dysplasia, epidermoid carcinoma, and adenocarcinoma of the cervix. However, other studies have not found such an association.[Ref]

Oncologic side effects have included reports of breast cancer.[Ref]

Cardiovascular

Detailed information concerning the effects of oral contraceptive therapy on lipid metabolism is available in the Endocrine paragraph of this side effect monograph.

Some early investigations of women taking high dose estrogen combinations (50 mcg or more of ethinyl estradiol or equivalent daily) suggested that such women may be at increased risk of cardiovascular complications (myocardial infarction, stroke, and vascular thrombosis, including venous thromboembolism). However, more recent large investigations of women taking low dose estrogen combinations have suggested that oral contraceptive use is not associated with an increased risk of serious cardiovascular complications in healthy non smoking women up to the age of 45. (For women aged 35 to 44 who smoke or who have preexisting systemic diseases that may affect the cardiovascular system, use of oral contraceptives is not recommended.)

However, some investigators have suggested that even the new low dose products may result in adverse effects on lipid metabolism and should prompt careful review of a woman's cardiovascular risk factors before a decision to use oral contraceptive combinations is made.

The frequency of both subarachnoid hemorrhage and thrombotic stroke has been reported by some investigators to be higher in women taking oral contraceptive hormones. However, other investigators have suggested that the risk of these effects for women using newer low dose formulations are very small for young women without underlying cardiovascular disease or other risk factors.[Ref]

Cardiovascular side effects of the estrogen component of this combination drug have included significant hypertension. However, significant blood pressure increases generally occurred only in women receiving high-dose estrogen products (50 mcg or more of ethinyl estradiol or equivalent daily). Estrogens have also been associated with edema. In addition, exogenous estrogens may have exerted cardio-protective effects by causing favorable changes in lipid profiles. These beneficial effects, however, may have been partially or completely offset by alterations in lipid profiles induced by exogenous progestins.[Ref]

Endocrine

Endocrine side effects have included complex alterations in plasma lipid profiles and carbohydrate metabolism. In addition, oral contraceptive use has been reported to cause conception delay.[Ref]

All the progestins which occur in commercially available oral contraceptive combinations have adverse effects on lipid profiles. Specifically, these progestins exert antiestrogen and androgen effects and decrease HDL (and HDL2) cholesterol levels and increase LDL cholesterol levels. However, the estrogens in oral contraceptive combinations exert opposing effects. Consequently, alterations in lipid profiles are related to the relative amount and potency of the specific estrogen and progestin in a given product. (Ethynodiol exerts moderate progestin and androgen effects and a weak antiestrogen effect.)

A number of investigations have suggested that oral contraceptive combinations may decrease glucose tolerance. However, some recent studies with low dose preparations have suggested that decreases in glucose tolerance due to oral contraceptive combinations are generally minimal.

Despite the potentially adverse effects of oral contraceptives on lipid levels and glucose tolerance, some investigators have suggested that young diabetic women without existing vascular disease or severe lipidemias may be candidates for low dose oral contraceptive combinations provided that they receive close monitoring for adverse metabolic effects.[Ref]

Hepatic

The rate of death due to hepatocellular carcinoma in the United States has not changed during the last 25 years (a time during which use of oral contraceptive hormones has increased dramatically).

A committee of the World Health Organization has reported that in developing countries where hepatitis B virus infection and hepatocellular carcinoma are common, "short term use of oral contraceptives does not appear to be associated with an increased risk. Data on the effects of long term use are scarce."

A recent Italian case-control study of women with hepatocellular carcinoma has suggested that the relative risk of hepatocellular carcinoma is 2.2 for oral contraceptive users compared to women who never used oral contraceptives.

A similar American case-control study from 1989 also reported a strong association between oral contraceptive use and hepatocellular carcinoma but concluded that: "If this observed association is causal, the actual number of cases of liver cancer in the United States attributable to oral contraceptive use is small. Therefore, these findings do not have public health importance in the United States and other Western nations."[Ref]

Hepatic side effects have included focal nodular hyperplasia, intrahepatic cholestasis, liver cell adenomas, hepatic granulomas, hepatic hemangiomas and well-differentiated hepatocellular carcinomas.[Ref]

Hematologic

Hematologic side effects have included thromboembolism. However, because the dose of exogenous estrogens is low in most commercially available preparations, the risk has been minimal for most women (except women who are over age 35 and smoke and women with a previous history of thrombotic diseases).[Ref]

Cases of venous thrombosis, pulmonary embolism (sometimes fatal), and arterial thrombosis have been reported rarely.

Previous thrombotic disease is considered a contraindication to use of oral contraceptive combinations.[Ref]

Genitourinary

Some women experience oligomenorrhea and amenorrhea following termination or oral contraceptive use.[Ref]

Genitourinary side effects have included breakthrough bleeding and spotting, especially during the first several cycles of oral contraceptive use. Non-hormonal causes of such bleeding should be excluded.[Ref]

Psychiatric

Psychiatric side effects have included depression and precipitation of panic disorder.[Ref]

Immunologic

Immunologic side effects have included systemic lupus erythematosus, which has been reported rarely.[Ref]

Other

Other side effects have included a case of fatal pulmonary occlusive disease associated with oral contraceptive therapy.[Ref]

Nervous system

Nervous system side effects have included chorea, which has been reported once in association with oral contraceptives.[Ref]

Ocular

Ocular side effects have included retinal thrombosis, which has been reported rarely. In addition, the manufacturers of oral contraceptive products have reported that some patients develop changes in contact lens tolerance.[Ref]

Some side effects of Zovia 1 / 35E may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

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