Safety Thiamine is generally well tolerated and non-toxic when administered orally. There are rare reports of adverse side effects when thiamine is given intravenously, including allergic reactions, nausea, lethargy, and impaired coordination.
Safety Thiamine is generally well tolerated and non-toxic when administered orally There are rare reports of adverse side effects when thiamine is given intravenously including allergic reactions nausea lethargy and impaired coordination