On Science Daily website I have found this information:
New natural supplement relieves canine arthritis
November 10, 2014
Universite de Montreal
Arthritis pain in dogs can be relieved, with no side effects, by a new product based on medicinal plants and dietary supplements. Two formulas were developed. The first formula, composed of curcumin, devil’s claw, black current, Indian frankincense (Salai), willow bark, pineapple bromelaine and camomile, was developed to treat arthritis-induced inflammation. The second included the same ingredients, plus dietary supplements such as omega 3, chondroitin sulfate and glutamine, and was formulated in the hope that it would promote the regeneration of articulations.