Devil’s claw

Devil’s claw is an herb. 

The botanical name, Harpagophytum, means “hook plant” in Greek. This plant, which is native to Africa, gets its name from the appearance of its fruit, which is covered with hooks meant to attach onto animals in order to spread the seeds. The roots and tubers of the plant are used to make medicine.

Devil’s claw is used for “hardening of the arteries" (atherosclerosis), arthritis, gout, muscle pain (myalgia), back pain, tendonitis, chest pain, gastrointestinal (GI) upset or heart burn, fever, and migraine headache. It is also used for difficulties in childbirth, menstrual problems, allergic reactions, loss of appetite, and kidney and bladder disease.

Some people apply devil’s claw to the skin for injuries and other skin conditions.

How effective is it?

Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, Ineffective, and Insufficient Evidence to Rate.

The effectiveness ratings for DEVIL'S CLAW are as follows:

Possibly effective for...

• Decreasing pain from a kind of arthritis called osteoarthritis. Taking devil’s claw alone or along with nonsteroidal anti-inflammatory drugs (NSAIDs) seems to help decrease osteoarthritis-related pain. Some evidence suggests that devil’s claw works about as well as diacerhein (a slow-acting drug for osteoarthritis that is not available in the U.S.) for improving osteoarthritis pain in the hip and knee after 16 weeks of treatment. Some people taking devil’s claw seem to be able to lower the dose of NSAIDs they need for pain relief. This evidence comes from a study that used a specific powdered devil’s claw root product (Harpadol, Arkopharma) containing 2% of the devil’s claw ingredient harpagoside (9.5 mg/capsule) and 3% total iridoid glycosides (14.5 mg per capsule). Another specific devil’s claw extract (Doloteffin, Ardeypharm) 2400 mg/day providing 60 mg/day of the harpagoside ingredient has also been used.
• Back pain. Taking devil’s claw orally seems to lessen low-back pain.

Insufficient evidence to rate effectiveness for...

• Rheumatoid arthritis (RA). Early research suggests that taking devil’s claw extract by mouth might not improve RA.
• Upset stomach.
• Loss of appetite.
• High cholesterol.
• Gout.
• Muscle pain.
• Migraine headache.
• Skin injuries and conditions.
• Other conditions.

More evidence is needed to rate devil’s claw for these uses.

How does it work? 

Devil’s claw contains chemicals that might decrease inflammation and swelling and resulting pain.

Are there safety concerns?

Devil’s claw is POSSIBLY SAFE for most adults when taken by mouth in appropriate doses for up to a year. The most common side effect is diarrhea. About 8% of the people participating in one research study developed diarrhea. Other possible side effects include nausea, vomiting, abdominal pain, headaches, ringing in the ears, loss of appetite, and loss of taste. It can also cause allergic skin reactions, menstrual problems, and changes in blood pressure.

However, not enough is known about the safety of using devil’s claw long-term or applying it to the skin.
read more at  http://www.nlm.nih.gov/medlineplus/druginfo/natural/984.html