DUOFILMDUOFILMGLAXO SMITH KLINE (GSK) Included Drugs Alternative Brands Available Forms GelDUOFILM GelIngredient(s): Lactic Acid 16.7 %w/w, Salicylic Acid 16.7 %w/wPacking: 15g LiquidDUOFILM LiquidIngredient(s): Lactic Acid 16.7 %w/v, Salicylic Acid 16.7 %w/vPacking: 15ml