Povidone-iodine

Antiseptic
ALSO SOLD WITHOUT PRESCRIPTION

Povidone-iodine is a antiseptic found in 1 medicine sold in India, such as Betadine. Below: what it is for, how it works, how to take it, side effects, interactions and pregnancy advice.

Also called: betadine, iodine

What it is used for

Kills germs on cuts, wounds, burns and skin before procedures; also used as a gargle.

How it works

An antiseptic that releases iodine to kill bacteria, viruses and fungi on skin, wounds and in the mouth (gargle).

How to take it

Apply to the skin or wound and let it dry; gargle diluted solution for 30 seconds and spit. Avoid large areas for long periods.

Common side effects

  • Skin irritation
  • Brown staining (washes off)

Get medical help straight away if

Rash or swelling (iodine allergy)

Be careful

Avoid with iodine allergy or thyroid disease, and on large areas for long periods.

Other medicines and interactions

Large-area or long use can affect thyroid tests and lithium users' thyroid.

Pregnancy and breastfeeding

Avoid regular or large-area use in pregnancy and while breastfeeding (iodine affects the baby's thyroid); occasional small use is fine.

Brands of Povidone-iodine (1)

Betadine

Common questions

What is Povidone-iodine used for?

Kills germs on cuts, wounds, burns and skin before procedures; also used as a gargle.

How does Povidone-iodine work?

An antiseptic that releases iodine to kill bacteria, viruses and fungi on skin, wounds and in the mouth (gargle).

How should I take Povidone-iodine?

Apply to the skin or wound and let it dry; gargle diluted solution for 30 seconds and spit. Avoid large areas for long periods.

What are the side effects of Povidone-iodine?

Common: Skin irritation, brown staining (washes off). Get help straight away for: Rash or swelling (iodine allergy).

Does Povidone-iodine interact with other medicines?

Large-area or long use can affect thyroid tests and lithium users' thyroid.

Is Povidone-iodine safe in pregnancy and breastfeeding?

Avoid regular or large-area use in pregnancy and while breastfeeding (iodine affects the baby's thyroid); occasional small use is fine.

Does Povidone-iodine need a prescription in India?

It is usually sold without a prescription in India, but ask a pharmacist if you take other medicines or have a long-term illness.

Which brands contain Povidone-iodine?

Betadine.

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.