Pain Reliever and Muscle Relaxant For effective relief of pain associated with muscle spasm such as back pain, tense neck muscles, strains and sprains. Robax Platinum contains an analgesic (ibuprofen) to relieve pain and a muscle relaxant (methocarbamol) to relax tense muscles. The item “2 x 102 Caplets Robax Platinum Muscle & Back Pain Relief […]