Voltarol Back & Muscle Pain Relief Gel 1.16% 100gVoltarol Back and Muscle Pain Relief 1. 16% Gel can relieve your pain and reduce inflammation. Getting you back on track and keeping your focus on your goal. When to use Voltarol Whether you have muscular back pain, muscle cramps, muscles spasm or muscle strains, Voltarol Back and Muscle Pain Relief 1. 16% Gel brings targeted pain relief and reduces swelling. 3x More Effective Pain Relief (1) Relieves Back and Muscle Pain Reduces Inflammation Speed up