Simetyl

Donnatal is a combination medication that provides natural belladonna alkaloids in a specific fixed ratio combined with phenobarbital to provide peripheral anticholinergic/antispasmodic action and mild sedation.[1][2] Donnatal is manufactured for Concordia Pharmaceuticals by IriSys, LLC. It is available as tablets[1] and 5 mL elixir.[2] Active ingredients are listed as: phenobarbital (16.2mg), hyoscyamine sulfate (0.1037mg), atro... [wikipedia]