Diclofenac diethylamine, the active substance in this medicine, belongs to the group of nonsteroidal anti-inflammatory drugs and topically acts as an analgesic and local anti-inflammatory. Voltadol Forte is indicated in adults and adolescents over the age of 14 for local relief from mild and occasional pain and inflammation caused by: small bruises, bumps, strains, torticollis or other contractures – occasional back pain (as a result of sports activities or during daily life activities) - mild sprains produced as a result of a sprain.