Chemical formula: C₁₂H₁₇N₄OS+ Molecular mass: 265.355 g/mol PubChem compound: 1130
Vitamin B1 interacts in the following cases:
High doses of thiamine may interfere with spectrophotometric assays of theophylline plasma concentration.
Thiamine could give false positive results for urobilinogen determination by the Ehrlich’s reaction.
The thiamine antagonists thiosemicarbazone and 5-fluorouracil can neutralise the effect of thiamine. Patients using any of these treatments may need their thiamine dose adjusted.
This product is not intended for use in pregnant women.
This product is not intended for use in lactating women.
No studies on the effect on the ability to drive and use machines have been performed.
However, patients should be cautioned to see how they react before driving or operating machinery.
Frequency not known (cannot be estimated from data): Mild gastrointestinal events such as nausea, vomiting, diarrhoea, and abdominal pain have been reported.
Frequency not known (cannot be estimated from data): Allergic and anaphylactic reactions, with symptoms of pruritus, urticaria, itching, hives, angioedema, abdominal pain, respiratory distress, tachycardia, palpitations, and shock have been reported in single cases.
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