About glucosamine
Aminosugar supplement
Used for
- Used for osteoarthritis symptoms, especially knee pain; evidence of benefit varies.
Usual adult dose
Usually 1,500 mg once daily for osteoarthritis.
Common side effects
- Nausea or heartburn
- Diarrhea or constipation
- Headache
- Allergic reactions, especially with shellfish allergy
Important warnings
- May raise blood sugar in some people.
- Use caution with shellfish allergy; sources and processing vary.
- Evidence for osteoarthritis benefit is mixed.
- Stop and seek urgent care for severe allergic symptoms.
Pregnancy
Safety is not established; generally avoided because evidence is limited.
Breastfeeding
Safety is not established; evidence during breastfeeding is limited.
Interactions
- Warfarin and other vitamin K antagonists: may increase bleeding or INR.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.