title: Differential acid dye method for determination of three pharmaceutical compounds.
mesh_terms: D004155:Diphenhydramine / Q000032:analysis*; D008722:Methods; D010862:Pilocarpine / Q000032:analysis*; D011208:Powders / Q000032:analysis; D013331:Strychnine / Q000032:analysis*
chemical_list: D011208:Powders; D010862:Pilocarpine; D004155:Diphenhydramine; D013331:Strychnine