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Used only extern. , in 5—10% oint. Acid, Salicylic, Merck.—U.S.P.—C.P., Cryst.; and Natural (from
Oil Wintergreen). Dose: 10—40 grn. Acid, Sozolic, —see Aseptol . Acid, Sulpho-anilic, Merck.—Cryst. White efflorescent needles.— Sol. slightly in alcohol; 112
parts water.