SPL Set ID: 32388e18-08de-455c-aad4-9c2264435f0f

Levsin ® tablets (hyoscyamine sulfate tablets USP) contain 0.125 mg hyoscyamine sulfate formulated for oral administration Levsin ® is one of the principal anticholinergic/antispasmodic components of belladonna alkaloids. The empirical formula is (C 17 H 23 NO 3 ) 2 • H 2 SO 4 • 2H 2 O and the molecular weight is 712.85. Chemically, it is benzeneacetic acid, α-(hydroxymethyl)-, 8-methyl-8-azabicyclo [3.2.1.] oct-3-yl ester, [3(S)-endo]-, sulfate (2:1), dihydrate with the following structure: Each tablet also contains as inactive ingredients: FD&C blue #1, lactose monohydrate, magnesium stearate, mannitol, starch and stearic acid. Levsin Structural Formula