Question:  I have a horse with arthritis who is showing definite improvement on 2 scoops/day of Devils Claw Plus. Should I leave him at this dosage much longer (it's been 2 weeks so far) or experiment with decreasing it to find the minimal amount that keeps him comfortable? Are there side effects that I should be concerned about in the long run? Thank you. Dr. Kellon: You might want to keep her on the 2 scoops/day for another 2 weeks or so until you are sure she has stabilized and stopped improving.  After that you can experiment with lowering the dose to see if that will hold her, but there should be no side effects to long term use of that dose.