Ever since the early 1900s, Devil's Claw has been used as a medicinal herb known for its beneficial effects on the digestive system. It was used to restore appetite and to reduce pain and inflammation. It’s a perfectly safe supplement, but it might be problematic for people with heart and circulation issues. The most common use for Devil's Claw today is to relieve arthritis pain and headaches. Devil's Claw is available as a liquid extract that you can dilute yourself or in capsule form for easy dosage.