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Brand names: Pramipexole dihydrochloride, Mirapex
12.1 Mechanism of Action Pramipexole is a non-ergot dopamine agonist with high relative in vitro specificity and full intrinsic activity at the D 2 subfamily of dopamine receptors, binding with higher affinity to D 3 than to D 2 or D 4 receptor subtypes. 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 influences striatal neuronal firing rates via activation of dopamine receptors in the striatum and the substantia nigra, the site of neurons that send projections to the striatum. The relevance of D3 receptor binding in Parkinson’s disease is unknown.
Contraindications
10 documented side effects by frequency
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10 available comparisons
Dosage Forms
Tablet
Route
Oral