Bromhexine
Bromhexine is a mucus thinner found in 1 medicine sold in India, such as Grilinctus-BM. Below: what it is for, how it works, how to take it, side effects, interactions and pregnancy advice.
What it is used for
Loosens thick phlegm in chesty cough.
How it works
A mucus thinner that is converted to ambroxol in the body; for chesty coughs.
How to take it
Usually 8 to 16 mg three times a day after food. Drink fluids.
Common side effects
- Nausea
- Stomach upset
- Dizziness
Get medical help straight away if
- Severe skin reaction (rare)
- Wheeze
Be careful
Can upset the stomach.
Other medicines and interactions
Do not combine with cough suppressants for a wet cough.
Pregnancy and breastfeeding
Avoid in early pregnancy and while breastfeeding unless advised.
Combination medicines that contain Bromhexine (1)
Common questions
What is Bromhexine used for?
Loosens thick phlegm in chesty cough.
How does Bromhexine work?
A mucus thinner that is converted to ambroxol in the body; for chesty coughs.
How should I take Bromhexine?
Usually 8 to 16 mg three times a day after food. Drink fluids.
What are the side effects of Bromhexine?
Common: Nausea, stomach upset, dizziness. Get help straight away for: Severe skin reaction (rare), wheeze.
Does Bromhexine interact with other medicines?
Do not combine with cough suppressants for a wet cough.
Is Bromhexine safe in pregnancy and breastfeeding?
Avoid in early pregnancy and while breastfeeding unless advised.
Does Bromhexine 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 Bromhexine?
Grilinctus-BM.
Sources and further reading
- Bromhexine: 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.
Last reviewed 31 October 2026. Written by Satya Babu from standard prescribing information.
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