🇺🇸 Vitamin B1 in United States

3,089 US adverse-event reports

Safety signals — FAERS

Adverse reaction reports describe suspected side effects. A report does not mean the drug caused the event — co-medications, underlying disease and coincidence all contribute.

• Window: 22 April 2025 – 22 April 2026
• Total reports: 3,089

Most-reported reactions

1. Fatigue — 488 reports (15.8%)
2. Diarrhoea — 352 reports (11.4%)
3. Drug Ineffective — 334 reports (10.81%)
4. Nausea — 328 reports (10.62%)
5. Off Label Use — 290 reports (9.39%)
6. Fall — 281 reports (9.1%)
7. Headache — 271 reports (8.77%)
8. Dizziness — 260 reports (8.42%)
9. Pain — 246 reports (7.96%)
10. Vomiting — 239 reports (7.74%)

Source database →

Frequently asked questions

Is Vitamin B1 approved in United States?

Vitamin B1 does not currently have US marketing authorisation in our dataset.

Who is the marketing authorisation holder for Vitamin B1 in United States?

Shanghai Zhongshan Hospital is the originator. The local marketing authorisation holder may differ — check the official source linked above.