Combined hormonal contraceptive and anti-androgen
Brand of Ethinylestradiol; Cyproterone Acetate
Last reviewed June 2026
Who is this for?
This is a combination pill containing two hormones — cyproterone acetate (an anti-androgen) and ethinylestradiol (an estrogen). It works by reducing the effects of male-type hormones (androgens) in a woman's body and also prevents pregnancy.
Blocks androgen receptors and inhibits 5-alpha reductase enzyme while ethinylestradiol suppresses gonadotropins (FSH/LH), reducing ovarian androgen production; combined effect decreases sebum production and androgenic symptoms while preventing ovulation for contraceptive efficacy.
Prescription Required
You need a doctor's prescription to buy this drug.
Is Ethinylestradiol; safe to take with another drug?
Check with multiple drugs →Explore this drug
Take one tablet daily at the same time each day for 21 days, then stop for 7 days (during which you will have your period). Start a new pack on the 8th day whether or not your period has finished. Swallow the tablet whole with water — you can take it with or without food. Start on the first day of your period for immediate protection.
If you miss a tablet by less than 12 hours, take it as soon as you remember and continue taking the rest as normal. If you miss it by more than 12 hours, take the missed tablet immediately but use extra protection (like condoms) for the next 7 days. If you miss more than one tablet, consult your pharmacist or doctor.
Only buy from registered pharmacies — avoid buying from roadside sellers or unverified online stores, as fake hormonal pills are common in Nigeria. Do not share this medication with friends even if they have similar symptoms, as it requires proper medical assessment. If you are scheduled for surgery, tell your doctor you are taking this drug, as it may increase the risk of blood clots.
Some antibiotics like rifampicin (used for TB treatment) can make this pill less effective, so you may need extra contraception. Anticonvulsants like carbamazepine and phenytoin can also reduce its effectiveness. St. John's wort (a herbal supplement) should be avoided as it can stop the pill from working properly.
Check your specific combination
Is it safe to take Ethinylestradiol; with your other drugs?
Do not take this drug if you are pregnant, think you might be pregnant, or are breastfeeding — it is not safe and you should consult your doctor immediately.
Store in a cool, dry place below 30°C — away from direct sunlight and humidity, which is especially important in hot Nigerian weather. Keep out of the reach of children.
For information only — not medical advice. Always talk to a doctor or pharmacist before changing your medication.
Names this drug is sold under — especially in Nigerian and West African pharmacies
Counterfeit Drug Warning
Fake drugs are a serious problem in Nigeria. Always buy from a registered pharmacy. If the packaging looks different from what is described above, do not use it.
Genuine packaging for Dianofem Tablets 2 mg/0.035 mg
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NAFDAC Number
B4-8904
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