About sulbutiamine
Synthetic vitamin B1 derivative
Used for
- Historically used for fatigue and weakness; evidence of benefit is limited.
Usual adult dose
Commonly 200 mg once or twice daily; use varies by country and product labeling.
Common side effects
- Headache
- Nausea or stomach discomfort
- Skin rash or itching
- Agitation or difficulty sleeping
Important warnings
- Availability and approved uses vary by country.
- May cause agitation or sleep problems, especially later in the day.
- Seek urgent care for signs of a serious allergic reaction.
Pregnancy
Safety is not well established; avoid unless a clinician recommends it.
Breastfeeding
Safety is not well established; avoid unless a clinician recommends it.
Interactions
- May reduce the effect of levodopa; check with a healthcare professional before combining.
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 It may be incomplete or out of date.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.