New developments in levodopa therapy
by
LeWitt PA, Nyholm D.
Department of Neurology, Psychiatry and Behavioral Neuroscience,
Wayne State University School of Medicine,
Detroit, Michigan, USA.
Neurology. 2004 Jan 13;62(1 Suppl 1):S9-16


ABSTRACT

More than 30 years after its development, levodopa is still the most effective treatment for the symptomatic control of Parkinson's disease (PD). Although a number of therapies have been developed in an attempt to improve PD management, such as dopaminergic agonists and inhibitors of COMT and MAO-B, most patients still depend on levodopa alone because of its superior ability to control PD symptoms. The issue of toxicity has been raised by in vitro studies suggesting that levodopa might be toxic to dopaminergic neurons, but this has since been answered by in vivo studies finding no evidence of toxicity and possibly even neurotrophic-like effects. A more pressing concern regarding levodopa is its association with the development of motor complications after long-term use. Pulsatile dopaminergic stimulation as a result of erratic absorption and the short half-life of levodopa have been central issues in attempts to explain this occurrence. Evidence suggests that altering the delivery of levodopa to provide a more continuous supply of this drug to the brain may result in improved control of PD symptoms.
D1
L-dopa
Stalevo
Sinemet
Selegiline
Tolcapone
Cabergoline
Bromocriptine
Levodopa high
Levodopa toxicity
Selegiline and cocaine
The dopamine transporter
Mucuna Pruriens and l-dopa
Dopamine and sexual function
Advanced Parkinson's disease
Selegiline and Parkinson's disease
Rasagiline in early Parkinson disease
Hedonistic homeostatic dysregulation
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