Voltaren is the #1 doctor & pharmacist recommended topical pain reliever. Voltaren Emulgel Back & Muscle Pain contains a unique medicated formula that relieves pain due to recent muscle or joint injuries such as sprains, strains or sports injuries (e.g. sprain of ankle, strain of shoulder or back muscles).Voltaren Back & Muscle Pain is applied right where it hurts and penetrates deep to relieve pain and reduce inflammation in the back, muscles and joints due to sprains, strains and sports injuries. Voltaren fights inflammation to relieve one of the root causes of back pain while also providing effective relief of pain in the neck and shoulders as well as in joints Voltaren emulsion gel technology combines the properties of a gel and a cream, so it both cools and has a moisturizing effect as it targets the source of pain. Formulated for adults and adolescents 16 years and older, regular strength Voltaren Back & Muscle Pain Relief contains the active ingredient diclofenac diethylamine, a non-steroidal anti-inflammatory (NSAID) analgesic. Apply the gel 3 to 4 times a day for pain relief. This package includes one 150-gram tube of Voltaren Back & Muscle Pain Relief Gel.