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Pramipexole Research Paper

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Pramipexole is a medication indicated for treating Parkinson's disease and restless legs syndrome (RLS). It is also used in treatment for cluster headache or to counteract the problems with low libido experienced by some users of SSRI antidepressant drugs. Pramipexole has shown robust effects on pilot studies in bipolar disorder. Pramipexole is classified as a non-ergoline dopamine agonist. Chemical name: (S)-N6-Propyl-4,5,6,7-tetrahydrobenzo[d]thiazole-2,6-diamine dihydrochloride Molecular formula : C10H19Cl2N3S Molecular weight : 284.243 g/mol Solubility : Freely soluble in water Colour : white to yellowish white Protein binding : 15% Half life : 8 hours Dose : 0.125, 0.25, 0.5, 0.75, 1, 1.5, 3 and 4 mg. Phrmacodynamics: Pramipexole is a nonergot dopamine agonist with high relative in vitro specificity and full intrinsic activity at the D2 subfamily of dopamine receptors, binding with higher affinity to D3 than to D2 or D4 receptor subtypes. The relevance of D3 receptor binding in Parkinson's disease is unknown. The precise mechanism of action of Pramipexole as a treatment for Parkinson's disease is unknown, although it is believed to be related to its ability to stimulate dopamine receptors in the striatum. This conclusion is supported by electrophysiologic studies in animals that have demonstrated that Pramipexole …show more content…

Urinary excretion is the major route of pramipexole elimination, with 90% of a pramipexole dose recovered in urine, almost all as unchanged drug. Nonrenal routes may contribute to a small extent to pramipexole elimination, although no metabolites have been identified in plasma or urine. The renal clearance of pramipexole is approximately 400 mL/min (CV=25%), approximately three times higher than the glomerular filtration rate. Thus, pramipexole is secreted by the renal tubules, probably by the organic cation transport

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