5CT PAIN RELIEF MEDICATED THERAPY PATCH. EXTRA STENGTH. HEALT MART PHARMACY. T LARGE PATCHES IN 1 RESEALBLE POUCH. 3.94 x 7.78" (10cm X 20cm) EACH. EACH PATCH LASTS UP TO 8 HOURS. IDEAL FOR BACK AND LARGE AREAS. PAIN RELEIVING OINTMENT ON A BREATHABLE ADHESIVE PAD. CONTAINS NATURAL MENTHOL 5%. EXTRA STENGTH PAIN RELIEF THERAPY PATCH PROVIDES CONCENTRATED, DEEP PENETRATING HEAT IN A SELF-ADHESIVE PATCH THAT TARGETS YOUR PAIN. EXPIRE 9/2019.