Treatment Guidelines from The Medical Letter
				
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ISSUE 62
    
   			
      			
      		
            		
			ISSUE 62
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				Drugs for Parkinson's Disease
October 1, 2007 (Issue: 62)
				ParkinsonÆs disease (PD) is caused primarily by progressive degeneration of dopamine-containing neurons in the substantia nigra. Dopamine itself cannot be used to treat PD because it does not cross the bloodbrain barrier.
        			
        			
				
				
        			
				The Medical Letter is a subscriber-funded nonprofit organization that publishes critical appraisals of new prescription drugs and comparative reviews of drugs for common diseases.
				