Sulbutiamine (trade names Arcalion, Enerion) is a synthetic thiamine derivative (vitamin B1). It is used to treat symptoms of weakness or fatigue in France. It’s also available as a dietary supplement. Sulbutiamine was discovered in Japan as part of a research project to develop functional thiamine derivatives.
Sulbutiamine treats asthenia (failure or weakness symptoms) though it is unclear whether it relieves tiredness. It is also used to treat thiamine deficiency and poor concentration. Sulbutiamine is a popular nootropic because it is a powerful cholinergic anxiolytic, with users reporting improved memory, focus, mood, and motivation. Endurance athletes may try it to improve their performance.
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