This NHS content is written for people in England. Medicine names, availability, prescribing and services may differ in other countries.
Side effects of Fybogel
Side effects of Fybogel include wind and bloating.
This sometimes happens because of the sudden increase of fibre in your diet.
It should get better after a few days. If the side effects continue, or you're worried, talk to your doctor or pharmacist.
View the original NHS website page ↗. Refreshed 19 August 2026.
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