Medicated Relief Patch, 60 ct, QC99630 Sale! This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Compare to the Active Ingredients in Salonpas. For temporary relief of minor aches and pains of muscles and joints associated with arthritis, simple backache, sprains, and bruises. No mess and lasts up to 8-hours.