| TAB vaccine | A suspension of killed typhoid and paratyphoid A and B bacilli. See: typhoid vaccine. Synonym: TAB vaccine. (05 Mar 2000) |
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| trihexyphenidyl | <drug> This prescription drug is used to treat Parkinson's disease. In many ways, its action resembles that of atropine. (19 Jan 1998) |
| trihexyphenidyl hydrochloride | A synthetic anticholinergic agent reputed to exert a higher degree of anticholinergic activity in the brain as compared with peripheral parasympathetic neuroeffector junctions. Widely used in the treatment of parkinsonism secondary to idiopathic or neuroleptic-induced parkinsonism. (05 Mar 2000) |