132975-02-1 3-(N,N-Dimethylcarbamyloxy)-1-methyl-delta(3)-tetrahydropyridine Carbamic acid, dimethyl-, 1,2,5,6-tetrahydro-1-methyl-3-pyridinyl ester, monohydrobromide Tetrahydropyridostigmine Tetrahydropyridostigmine hydrobromide