People most commonly take benfotiamine by mouth for nerve damage caused by diabetes (diabetic neuropathy) and alcoholism. It is also used for Alzheimer disease, arthritis, and other conditions, but there is no strong scientific evidence to support these other uses.
Niacin is a B vitamin that helps the body turn food into energy and supports a healthy nervous system, digestive system, and skin. Most people get enough niacin from food, but it is also included in multivitamins.
It is used to treat an eye problem called keratoconus and certain eye issues after eye surgery.
This medication is used to treat or prevent thiamine deficiency when oral forms are ineffective. Thiamine is a B vitamin that helps your body use carbohydrates for energy.