B1 Safety & Side Effects
Our assessment
Based on the data provided, thiamin has not been shown to cause any harm. This makes its overall safety profile very favorable, as no adverse effects have been documented in the available information.
How it works
Thiamin is a B vitamin that the body requires for energy metabolism and nerve function. The data indicates it is well-tolerated, with no reports of side effects in the FDA data provided.
Safety profile
Thiamin has not been shown to cause any harm. No specific side effects with report counts are available in the provided FDA data FDA FAERS ↗. Based on the data, no adverse event reports were provided for analysis.
Our recommendation
Thiamin is generally considered safe, with no reported harm. However, be aware that certain medications can lower thiamin levels, including Furosemide (Lasix) used for high blood pressure and swelling, and Fluorouracil (5-fluorouracil and Adrucil) used in chemotherapy NIH DSLD ↗. If you are taking these medications, discuss your thiamin status with your healthcare provider. Data not available on specific dose thresholds for harm.
AI-assisted analysis. Data sourced from NIH ODS and FDA.
Safety Overview
Thiamin has not been shown to cause any harm.
Drug Interactions
Yes. Some medicines can lower thiamin levels in the body. Here are a couple examples: Furosemide (Lasix), which is used to treat high blood pressure and swelling caused by excess fluid in the body Fluorouracil (5-fluorouracil and Adrucil), which is used in chemotherapy treatments for some types of cancer Tell your doctor, pharmacist , and other health care providers about any dietary supplements and prescription or over-the-counter medicines you take. They can tell you if the dietary supplements might interact with your medicines or if the medicines might interfere with how your body absorbs, uses, or breaks down nutrients such as thiamin.