SALONPAS® PAIN RELIEF PATCH is the first and only FDA-Approved OTC topical pain patch for the temporary relief of mild to moderate muscles and joints aches and pains associated with arthritis, sprains, strains, bruises and simple backache. 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).