"Nov. 6, 2012 -- Exercise helps put people with Parkinson's disease on a path to better health, a new study shows.
All Parkinson's patients reach a point in their disease where they begin to have trouble walking. Typically, a person st"...
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Pergolide mesylate is a potent dopamine receptor agonist. Pergolide is 10 to 1,000 times more potent than bromocriptine on a milligram per milligram basis in various in vitro and in vivo test systems. Pergolide mesylate inhibits the secretion of prolactin in humans; it causes a transient rise in serum concentrations of growth hormone and a decrease in serum concentrations of luteinizing hormone. In Parkinson†s disease, pergolide mesylate is believed to exert its therapeutic effect by directly stimulating postsynaptic dopamine receptors in the nigrostriatal system.
Information on oral systemic bioavailability of pergolide mesylate is unavailable because of the lack of a sufficiently sensitive assay to detect the drug after the administration of a single dose. However, following oral administration of 14C radiolabeled pergolide mesylate, approximately 55% of the administered radioactivity can be recovered from the urine and 5% from expired CO2, suggesting that a significant fraction is absorbed. Nothing can be concluded about the extent of presystemic clearance, if any.
Data on postabsorption distribution of pergolide are unavailable.
At least 10 metabolites have been detected, including N-despropyl-pergolide, pergolide sulfoxide, and pergolide sulfone. Perolide sulfoxide and pergolide sulfone are dopamine agonists in animals. The other detected metabolites have not been identified and it is not known whether any other metabolites are active pharmacologically.
The major route of excretion is the kidney.
Pergolide is approximately 90% bound to plasma proteins. This extent of protein binding may be important to consider when pergolide mesylate is coadministered with other drugs known to affect protein binding.
Last reviewed on RxList: 12/8/2004
This monograph has been modified to include the generic and brand name in many instances.
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