Sulbutiamine is a synthetic thiamine derivative designed to overcome thiamine’s inherently poor bioavailability. It was designed in the 70’s in Japan in response to widespread thiamine deficiency. Later studies revealed that it had a significant effect on treating asthenia, a type of centrally mediated fatigue.
Sulbutiamine is a lipid soluble analogue of thiamine which has been demonstrated to increase thiamine levels in tissue. Unfortunately, very little human pharmacokinetic data exists. Studies published from Servier, the French manufacturer of sulbutiamine, indicate that peak plasma levels of sulbutiamine...