Devils claw has become one of the main herbal anti-inflammatory pain killing anti-arthritic herbs. Cautions & contraindications Do not take devils claw if you have duodenal or stomache ulcers or gallstones. Dosage Take 20 drops of Swiss Herbal Remedies devils claw tincture three times daily before meals. Mix with a little water. This dosage can be doubled if you need to take more drastic action in stubborn cases. Tincture specifications Swiss Herbal Remedies devils claw tincture is an organic decocted tincture 13 & 25% alcohol.