Probiotics
Lactobacillus rhamnosus GG
Also called: LGG, culturelle
A well-studied probiotic strain.
- Why people take it
- Diarrhoea from antibiotics, children's gastroenteritis.
- What the evidence says
- Some evidence for preventing antibiotic-related diarrhoea.
- How it is usually taken
- Usually 10 billion CFU or more a day; separate from antibiotics by 2 hours.
- Be careful
- Avoid if seriously ill or immunocompromised.
- Medicines it can interact with
- Antibiotics reduce its effect; avoid in severe immune suppression.
Other probiotics
Common questions
What is Lactobacillus rhamnosus GG?
A well-studied probiotic strain.
Why do people take Lactobacillus rhamnosus GG?
Diarrhoea from antibiotics, children's gastroenteritis.
Does Lactobacillus rhamnosus GG work?
Some evidence for preventing antibiotic-related diarrhoea.
How much Lactobacillus rhamnosus GG do people take?
Usually 10 billion CFU or more a day; separate from antibiotics by 2 hours.
Is Lactobacillus rhamnosus GG safe?
Avoid if seriously ill or immunocompromised.
Does Lactobacillus rhamnosus GG interact with medicines?
Antibiotics reduce its effect; avoid in severe immune suppression.
Sources and further reading
Last reviewed 31 October 2026. Written by Satya Babu.
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