Medical Editor: John P. Cunha, DO, FACOEP
Demulen (ethinyl estradiol and ethynodial diacetate) contains a combination of female hormones and is used as contraception to prevent pregnancy. Demulen may no longer be available in the U.S. Demulen is available in generic form. Common side effects of Demulen (ethinyl estradiol and ethynodial diacetate) include nausea, vomiting, headache, stomach cramping/bloating, dizziness, vaginal discomfort/irritation, increased vaginal fluids or discharge, or breast tenderness/enlargement, mood changes, or weight gain. Acne may improve or get worse. Vaginal bleeding between periods (spotting) or missed/irregular menstrual periods may occur, especially during the first few months of use.
The dose of Demulen must be taken exactly as directed and at intervals of 24 hours. Take 1 white tablet each day at the same time for 21 days. Then take blue tablets for 7 days, whether bleeding has stopped or not. After all 28 tablets have been taken, whether bleeding has stopped or not, repeat the same dosage schedule beginning the following day. Demulen may interact with acetaminophen, ascorbic acid (vitamin C), phenylbutazone, St. John's wort, antibiotics, seizure medications, barbiturate sedatives, HIV or AIDS medications. Tell your doctor all medications and supplements you use. Demulen must not be used during pregnancy. If you become pregnant or think you may be pregnant, tell your doctor. If you have just given birth or had a pregnancy loss/abortion after the first 3 months, consult your doctor and find out when it is safe to use birth control containing estrogen, such as this medication. This medication passes into breast milk. This may affect milk production and may have undesirable effects on a nursing infant. Consult your doctor before breastfeeding.
Our Demulen (ethinyl estradiol and ethynodial diacetate) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Endocrine & metabolic: Amenorrhea, breakthrough bleeding, breast enlargement, breast secretion, breast tenderness, carbohydrate intolerance, lactation decreased (postpartum), glucose tolerance decreased, libido changes, menstrual flow changes, sex hormone-binding globulins (SHBG) increased, spotting, temporary infertility (following discontinuation), thyroid-binding globulin increased, triglycerides increased
Hematologic: Antithrombin III decreased, folate levels decreased, hemolytic uremic syndrome, norepinephrine induced platelet aggregability increased, porphyria, prothrombin increased; factors VII, VIII, IX, and X increased
Renal: Impaired renal function
Miscellaneous: Hemorrhagic eruption
Read the entire FDA prescribing information for Demulen (Ethinyl Estradiol and Ethynodiol Diacetate)