Progesterone

Hormone
PRESCRIPTION ONLY IN INDIA

Progesterone is a hormone found in 1 medicine sold in India, such as Susten. Below: what it is for, how it works, how to take it, side effects, interactions and pregnancy advice.

What it is used for

Supports pregnancy in women at risk of miscarriage and is used in fertility treatment.

How it works

The natural pregnancy-supporting hormone; used in fertility treatment, to prevent some early births and in menopause hormone therapy.

How to take it

Capsules or pessaries, usually at bedtime, exactly as prescribed; injections given by a health worker.

Common side effects

  • Drowsiness
  • Breast tenderness
  • Bloating
  • Headache

Get medical help straight away if

  • Pain or swelling in one leg, chest pain or breathlessness
  • Heavy bleeding
  • Severe headache

Be careful

Can cause drowsiness; use only as prescribed.

Other medicines and interactions

Rifampicin, carbamazepine and phenytoin reduce its effect.

Pregnancy and breastfeeding

Prescribed in pregnancy for specific reasons only by your doctor.

Brands of Progesterone (1)

Susten

Common questions

What is Progesterone used for?

Supports pregnancy in women at risk of miscarriage and is used in fertility treatment.

How does Progesterone work?

The natural pregnancy-supporting hormone; used in fertility treatment, to prevent some early births and in menopause hormone therapy.

How should I take Progesterone?

Capsules or pessaries, usually at bedtime, exactly as prescribed; injections given by a health worker.

What are the side effects of Progesterone?

Common: Drowsiness, breast tenderness, bloating, headache. Get help straight away for: Pain or swelling in one leg, chest pain or breathlessness, heavy bleeding, severe headache.

Does Progesterone interact with other medicines?

Rifampicin, carbamazepine and phenytoin reduce its effect.

Is Progesterone safe in pregnancy and breastfeeding?

Prescribed in pregnancy for specific reasons only by your doctor.

Does Progesterone need a prescription in India?

Yes. In India it is a prescription (Schedule H) medicine, so a pharmacist should sell it only with a doctor's prescription.

Which brands contain Progesterone?

Susten.

Sources and further reading

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.

Last reviewed 31 October 2026. Written by Satya Babu from standard prescribing information.

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For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.