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The Side Effects of Parkinson's Treatment Friday, January 30, 2009 - Anuradha Menon Home >> Headlines >> Medicine   
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People with Parkinson's disease commonly suffer a slowing or freezing of movement caused by the death of neurons that make dopamine, a key chemical that allows brain cells to send and receive messages essential to voluntary movements. Patients regain the ability to move, seemingly miraculously, by taking L-DOPA or related drugs that mimic the missing dopamine. After a few years on L-DOPA, however, most patients again lose motor control -- but in an opposite way. (source: web.mit.edu)
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