Rutranex also known Salicylic Acid is a medication is commonly used to remove the outer layer of theskin. As such, it is used to treatwarts,psoriasis,acne vulgaris,ringworm,dandruff, andichthyosis. Salicylic acid is used in the production of other pharmaceuticals, including4-aminosalicylic acid,sandulpiride, andlandetimide(viasalethamide) Salicylic acid occurs in plants as free salicylic acid and its carboxylated esters and phenolic glycosides. Several studies suggest that humans metabolize salicylic acid in measurable quantities from these plants.