Thiamine Side Effects
Some side effects of thiamine may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
For the Consumer
Applies to thiamine: capsule, solution, tablet, tablet enteric coated
Along with its needed effects, thiamine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking thiamine:Rare - Soon after receiving injection only
- difficulty in swallowing
- itching of skin
- swelling of face, lips, or eyelids
- wheezing or difficulty in breathing
For Healthcare Professionals
Applies to thiamine: compounding powder, injectable solution, oral tablet
Local side effects have included tenderness and induration at the injection site following intramuscular use.
Hypersensitivity side effects have included a feeling of warmth, pruritus, urticaria, weakness, sweating, nausea, restlessness, tightness of the throat, angioneurotic edema, cyanosis, pulmonary edema, and hemorrhage into the gastrointestinal tract. Anaphylaxis has been reported, especially after repeated injection. Collapse and death have also been reported.
More about thiamine
- Other brands: Vitamin B1
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