Algo-nevriton was used to treat pain associated with rheumatisms and nevralgia. The drug contained two active principles, diacetylthiamine and acetylsalicylic acid (also known as aspirin). This latter product is a classical nonsteroidal anti-inflammatory drug (NSAID) commonly used to reduce pain, fever, or inflammation. The antalgic action was significantly reinforced when acetylsalicylic acid was combined with diacetylthiamine.
Diacetylthiamine (also known as nevriton, acetiamine) derives from thiamine (vitamin B1) but this product has been rarely used in pharmaceuticals. Diacetylthiamine provided an orally active product, more convenient to use that thiamine which is an injectable product given by intra-muscular injection. Algo-nevriton has been removed from the market for a long time. There are now better options to treat pain.