Salonpas ® Pain Relief Patch is the only OTC pain reliever labeled to relieve mild to tougher, moderate pain. Salonpas ® Pain Relief Patch provides effective pain relief for up to 12 hours. Salonpas ® Pain Relief Patch contains two powerful pain fighting ingredients, menthol and methyl salicylate (a NSAID – a nonsteroidal anti-inflammatory drug). Active Ingredients Per Patch Menthol 3% (Topical analgesic) Methyl salicylate 10% (NSAID*) (Topical analgesic) *nonsteroidal anti-inflammatory drug Uses= Temporarily relieves mild to moderate aches & pains of muscles & joints associated with: Strains Sprains Simple backache Arthritis Bruises For external use only