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From the Oregon Health and Science University, Portland, OR.
Address correspondence and reprint requests to Dr. Kathryn Chung, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, OP32, Portland, OR 97239-3098; e-mail: chungka{at}ohsu.edu
The authors examined the motor effects of 2 weeks of paroxetine, a serotonin reuptake inhibitor (SSRI), and placebo on responses to 2-hour levodopa infusions in 14 subjects with Parkinson disease. Paroxetine did not affect tapping scores or dyskinesia. Baseline walking speed (preinfusion) increased on paroxetine, often associated with an increased subjective perception of worsened balance.
Supported in part by Veterans Administration Parkinsons Disease Research, Education and Clinical Center (PADRECC) NIH grant 5-R01-NS021062 and PHS grant 5-M01-RR000334.
Dr. Chung has nothing to disclose. Dr. Nutt has received unrestricted educational grants and honoraria from GlaxoSmithKline.
Received August 30, 2004. Accepted in final form February 9, 2005.
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