Pramipexole
Dopamine agonist medication / From Wikipedia, the free encyclopedia
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Pramipexole, sold under the brand Mirapex among others, is medication used to treat Parkinson's disease (PD) and restless legs syndrome (RLS).[8] In Parkinson's disease it may be used alone or together with levodopa.[8] It is taken by mouth.[8] Pramipexole is a dopamine agonist of the non-ergoline class.[8]
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Pronunciation | /ˌpræmɪˈpɛksoʊl/ |
Trade names | Mirapex, Mirapexin, Sifrol, others |
AHFS/Drugs.com | Monograph |
MedlinePlus | a697029 |
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Routes of administration | By mouth |
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Bioavailability | >90% |
Protein binding | 15% |
Elimination half-life | 8–12 hours |
Excretion | Urine (90%), feces (2%) |
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ECHA InfoCard | 100.124.761 |
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Formula | C10H17N3S |
Molar mass | 211.33 g·mol−1 |
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Pramipexole (and related D3-preferring dopamine agonist medications such as ropinirole) can induce "impulsive-compulsive spectrum disorders"[9] such as compulsive gambling, punding, hypersexuality, and overeating, even in people without any prior history of these behaviours.[10][11][12] There have also been reported detrimental side effects related to impulse-control disorders resulting from off-label use of pramipexole or other dopamine agonists in treating clinical depression.[13] The incidence and severity of impulse-control disorders for those taking the drug for depression is not fully understood because the drug has not been approved for the treatment of depression and the first major studies of its efficacy in treating anhedonic depression were conducted in 2022. There have been anecdotal reports of abrupt and severe personality changes related to impulsivity and loss of self-control in a minority of patients regardless of the condition being treated, although the incidence of these side effects is not yet fully known.[13]
Pramipexole was approved for medical use in the United States in 1997.[8] Use in pregnancy and breastfeeding is of unclear safety.[1] It is available as a generic medication.[14] In 2021, it was the 209th most commonly prescribed medication in the United States, with more than 2 million prescriptions.[15][16]