The Medical Letter on Drugs and Therapeutics
				
			FROM
ISSUE 781
    
   			ISSUE 781
December 16, 1988
                			
                		 Issue 781
                		
            		
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				Drugs for Parkinsonism
December 16, 1988 (Issue: 781)
				Patients with Parkinson's disease have a deficiency of the neurotransmitter dopamine, a catecholamine. Dpamine itself cannot be used to treat the disease because it does not cross the blood-brain barrier, but its metabolic precursor, levodopa, does...more
        			
        			
				
				
        			
				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.
				

