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Reversible Worsening of Parkinson Disease Motor Symptoms After Oral Intake of Uncaria tomentosa (Cat's Claw)

Cosentino, Carlos MD*†; Torres, Luis MD*

doi: 10.1097/WNF.0b013e31815a5eef
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Uncaria tomentosa (UT), also known as cat's claw, isa Peruvian Rubiaceae species widely used in traditional medicine for the treatment of a wide range of health problems. There is no report about the use, safety, and efficacy of UT in neurological disorders. We describe reversible worsening of motor signs in a patient with Parkinson disease after oral intake of UT, and some possible explanations are discussed.

*Movement Disorders Unit, Instituto de Ciencias Neurologicas, and the †Complejo Hospitalario San Pablo, Lima, Peru.

Address correspondence and reprint requests to Carlos Cosentino, MD, Movement Disorders Unit, Instituto de Ciencias Neurologicas, Ancash 1271, Lima 1, Peru; E-mail: ccosentinoe@gmail.com.

© 2008 Lippincott Williams & Wilkins, Inc.