Fastum Dispenser 2.5% Gel is a topical ointment that helps to relieve localized pain and reduce inflammation in the joints, ligaments, tendons and muscles. Fastum Dispenser 2.5% Gel may be applied for local pain relief, treatment of rheumatic or traumatic pain in the osteoarticular and muscular system: Contusions, distortions, sprains, muscle strains, stiff neck, lumbago and others.