Krimson 35
Krimson 35 is a tablet made by Zydus that contains Cyproterone acetate 2 mg + Ethinylestradiol 0.035 mg. It combines Cyproterone acetate: anti-androgen hormone and Ethinylestradiol: hormone (oestrogen).
| Ingredient (salt) | Amount |
|---|---|
| Cyproterone acetate | 2 mg |
| Ethinylestradiol | 0.035 mg |
Cyproterone acetate
What it is used for
With ethinylestradiol, treats acne and excess hair growth in women (for example in PCOS).
How it works
An anti-androgen combined with ethinylestradiol for severe acne and excess hair in women (including PCOS); higher doses for prostate cancer.
How to take it
One tablet a day as directed; it also works as contraception.
Common side effects
- Nausea
- Breast tenderness
- Headache
- Mood changes
Get medical help straight away if
- Signs of a clot (leg pain, chest pain, breathlessness)
- Yellow skin
- Low mood
Be careful
Raises the risk of blood clots; also acts as contraception.
Other medicines and interactions
Same interactions as combined pills. Stop once acne is controlled, as clot risk is higher than with standard pills.
Pregnancy and breastfeeding
Must not be used in pregnancy or while breastfeeding.
Ethinylestradiol
What it is used for
Part of combined birth-control pills; also used for some hormone problems.
How it works
A synthetic oestrogen in combined contraceptive pills and some treatments for acne, excess hair and irregular periods.
How to take it
Take one pill daily at the same time; follow the pack for pill-free days and missed-pill rules.
Common side effects
- Nausea
- Breast tenderness
- Headache
- Spotting between periods
Get medical help straight away if
- Pain or swelling in one leg, chest pain, breathlessness, a severe headache or sudden vision change (clot or stroke)
- Yellow skin
Be careful
Raises the risk of blood clots, especially in smokers over 35.
Other medicines and interactions
Rifampicin, some anti-epileptics and St John's wort reduce contraceptive effect. Not for smokers over 35 or women with migraine with aura.
Pregnancy and breastfeeding
Not used in pregnancy. Usually avoided in the first 6 weeks of breastfeeding because it can reduce milk.
Common questions
What is Krimson 35?
Krimson 35 is a tablet by Zydus containing Cyproterone acetate 2 mg + Ethinylestradiol 0.035 mg.
What is Krimson 35 used for?
With ethinylestradiol, treats acne and excess hair growth in women (for example in PCOS). Part of combined birth-control pills; also used for some hormone problems.
How should I take Krimson 35?
One tablet a day as directed; it also works as contraception. Take one pill daily at the same time; follow the pack for pill-free days and missed-pill rules. Always follow the dose your doctor or the pack gives.
What are the side effects of Krimson 35?
Common side effects include: Nausea, breast tenderness, headache, mood changes, Nausea, breast tenderness, headache, spotting between periods. Get medical help straight away for: Signs of a clot (leg pain, chest pain, breathlessness), yellow skin, low mood, Pain or swelling in one leg, chest pain, breathlessness, a severe headache or sudden vision change (clot or stroke), yellow skin.
Does Krimson 35 need a prescription?
Yes. In India it is a prescription (Schedule H) medicine, so a pharmacist should sell it only with a doctor's prescription.
Can I take Krimson 35 in pregnancy or while breastfeeding?
Must not be used in pregnancy or while breastfeeding. Not used in pregnancy. Usually avoided in the first 6 weeks of breastfeeding because it can reduce milk.
What are the substitutes for Krimson 35?
We have no other brand with exactly the same composition and strength in our list yet. Ask your pharmacist for an equivalent.
Sources and further reading
- Cyproterone acetate: NHS · MedlinePlus
- Ethinylestradiol: NHS · MedlinePlus
NHS (UK National Health Service) and MedlinePlus (US National Library of Medicine) are free, reviewed medicine guides. Brand names and doses there may differ from India.
Composition checked against pack details from large Indian online pharmacies. Last reviewed 31 October 2026. Written by Satya Babu.
🔎 Search another medicine