What is the difference between SALONPAS® Pain Relief Patch/SALONPAS® Arthritis Pain and other OTC pain relief patches?

This product is the first and only FDA-approved OTC pain relief patch for the temporary relief of mild to moderate aches and pains. All other OTC pain relief patches are for only minor pain. While effectiveness of other OTC pain relief patches last up to 8 hours, effectiveness of SALONPAS® Pain Relief Patch/SALONPAS® Arthritis Pain lasts up to 12 hours.