Bacillus clausii

Probiotic
ALSO SOLD WITHOUT PRESCRIPTION

Bacillus clausii is a probiotic found in 1 medicine sold in India, such as Enterogermina. Below: what it is for, how it works, how to take it, side effects, interactions and pregnancy advice.

What it is used for

Restores gut bacteria during diarrhoea or after antibiotics.

How it works

A spore-forming probiotic sold as small vials or capsules, used for diarrhoea and during antibiotic courses.

How to take it

Usually 1 to 2 vials or capsules a day, a few hours apart from the antibiotic.

Common side effects

Rarely rash or stomach upset

Get medical help straight away if

Fever or feeling unwell with weak immunity

Be careful

Generally safe.

Other medicines and interactions

Separate from antibiotic doses.

Pregnancy and breastfeeding

Generally considered safe.

Brands of Bacillus clausii (1)

Enterogermina

Common questions

What is Bacillus clausii used for?

Restores gut bacteria during diarrhoea or after antibiotics.

How does Bacillus clausii work?

A spore-forming probiotic sold as small vials or capsules, used for diarrhoea and during antibiotic courses.

How should I take Bacillus clausii?

Usually 1 to 2 vials or capsules a day, a few hours apart from the antibiotic.

What are the side effects of Bacillus clausii?

Common: Rarely rash or stomach upset. Get help straight away for: Fever or feeling unwell with weak immunity.

Does Bacillus clausii interact with other medicines?

Separate from antibiotic doses.

Is Bacillus clausii safe in pregnancy and breastfeeding?

Generally considered safe.

Does Bacillus clausii 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 Bacillus clausii?

Enterogermina.

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.