Ark Spray 55gm/78.6 ml Spray include Diclofenac, Linseed Oil, Menthol, and Methyl Salicylate. Non-steroidal anti-inflammatory medicines include diclofenac sodium and methyl salicylate. The anti-inflammatory component of linseed oil is -linolenic acid. In addition to producing a cooling sensation, menthol causes stimulation of nerve endings and acts locally to distract people and reduce pain.Disclaimer:For more information contact your physician.