1) Combination drug 
Tetrabamate (Atrium, G Tril, Sevrium) is a combination drug formulation of febarbamate, difebarbamate, and phenobarbital which was marketed in France and Spain and was used to treat anxiety and alcohol withdrawal-associated muscle tremors, agitation, and depression. It was largely, but not completely discontinued on April 4, 1997 after over 30 yea...