[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [Pharmacology](https://durgical.com/en/pharmacology/) › [Dopamine agonists](https://durgical.com/en/pharmacology/classes/dopamine-agonists/) › Pramipexole [Pharmacology](https://durgical.com/en/pharmacology/) · [Dopamine agonists](https://durgical.com/en/pharmacology/classes/dopamine-agonists/) # Pramipexole A non-ergot dopamine agonist for Parkinson disease and restless legs. Known for sudden sleep attacks and impulse-control disorders. Updated 2026-11-01 - Class: [Dopamine agonists](https://durgical.com/en/pharmacology/classes/dopamine-agonists/) - Receptor: Dopamine D3 and D2 receptors (D3 shown) - ATC code: N04BC05 ◎**Dopamine D3 and D2 receptors (D3 shown)**Pramipexole ⓘ The figure shows pramipexole bound to the human D3 receptor coupled to its Gi protein. **Target in 3D:** Dopamine D3 and D2 receptors (D3 shown). PDB structure 7CMU (RCSB PDB, public domain). [View the structure at RCSB PDB](https://www.rcsb.org/structure/7CMU) · Drag to rotate · pinch to zoom ## Mechanism of action Pramipexole stimulates D2-family dopamine receptors directly, with higher affinity for D3 than for D2 or D4. Because it acts on the receptor, it works even when few dopamine neurons remain. - Pramipexole binds D3 and D2 receptors in the striatum - It mimics dopamine without needing dopamine neurons - Movement circuits are activated again - Slowness and rigidity improve; restless legs settle ## Pharmacokinetics **Absorption** Rapidly absorbed; oral bioavailability above 90% **Elimination** About 90% recovered in urine, almost all unchanged; the dose is adjusted in kidney disease **Half-life** About 8 hours in young adults and about 12 hours in older adults ## Indications - Parkinson disease, alone or with levodopa [Parkinson disease →](https://durgical.com/en/conditions/parkinson-disease/) - Moderate to severe primary restless legs syndrome [Restless legs syndrome →](https://durgical.com/en/conditions/restless-legs-syndrome/) ## Adverse effects ### Common - Nausea, dizziness, somnolence - Dyskinesia when added to levodopa - Orthostatic hypotension, mainly when the dose is raised - Dry mouth and leg swelling ### Serious (rare, important) - Falling asleep without warning during daily activities, including driving - Impulse-control and compulsive behaviours (gambling, sex, spending, binge eating) - Hallucinations and psychotic-like behaviour - Augmentation and rebound in restless legs syndrome - Withdrawal symptoms or hyperpyrexia and confusion after sudden stopping ## Contraindications - No absolute contraindications on the label; caution in kidney disease, psychosis and in people who drive ## Key interactions **Antipsychotics, metoclopramide** Dopamine antagonists reduce its effect **Cimetidine and other drugs secreted by the kidney** Raise pramipexole levels and sleepiness **Alcohol and sedatives** More somnolence and sleep attacks ## What is monitored - Daytime sleepiness and episodes of falling asleep - New gambling, sexual, spending or eating urges (ask the family too) - Standing blood pressure - Kidney function ## Administration and safety - Increased gradually and, when stopped, tapered rather than stopped suddenly - Immediate-release and extended-release tablets are different products - Taking it with food can reduce nausea ## Nursing care - Teach not to drive until sleepiness is known, and to report sudden sleep - Ask patient and family about gambling, shopping or sexual behaviour changes - Check orthostatic blood pressure and fall risk - Report hallucinations or confusion ## Pregnancy and breastfeeding Animal studies suggest possible harm to the fetus; there are no adequate human data. ## Memory aid «Pramipexole: Pee it out, Pass out, Play cards»: cleared by the kidney, sudden sleep attacks and gambling urges. ## Test yourself Think of the answer, then tap the question to see it. ## Which dopamine receptor subtype does pramipexole bind with highest affinity? D3, more than D2 or D4. ## How is pramipexole mainly eliminated? Unchanged in the urine, so the dose is adjusted in kidney disease. ## Which two adverse effects of pramipexole matter for driving and for family finances? Sudden sleep attacks and impulse-control disorders such as pathological gambling or compulsive spending. ## Besides Parkinson disease, which disorder is pramipexole approved for? Moderate to severe primary restless legs syndrome. [Add to my cards (4)](https://durgical.app/estudiar/?add=/en/pharmacology/pramipexole/) ## Related drugs - [Ropinirole](https://durgical.com/en/pharmacology/ropinirole/) - [Levodopa + carbidopa](https://durgical.com/en/pharmacology/levodopa-carbidopa/) - [Cabergoline](https://durgical.com/en/pharmacology/cabergoline/) ## Related conditions - [Parkinson disease](https://durgical.com/en/conditions/parkinson-disease/) - [Restless legs syndrome](https://durgical.com/en/conditions/restless-legs-syndrome/) [← Back to the class: Dopamine agonists](https://durgical.com/en/pharmacology/classes/dopamine-agonists/) Educational content on how drugs work; not a prescribing guide and no substitute for a health professional's advice. No doses are given. Sources: [DailyMed - PRAMIPEXOLE DIHYDROCHLORIDE tablet](https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=fb2260d6-204c-4d25-a331-0f8340d83a6e) (DailyMed (U.S. National Library of Medicine), 2026); [Pramipexole: MedlinePlus Drug Information](https://medlineplus.gov/druginfo/meds/a697029.html) (MedlinePlus (U.S. National Library of Medicine), 2022); Goodman & Gilman's The Pharmacological Basis of Therapeutics, 14th ed., ch. 21 (McGraw Hill, 2023). ## **Spotted a mistake?** We are always improving for the community. Tell us what is wrong and our team will review it. Report a mistake Representative model, for educational purposes only. --- Source: https://durgical.com/en/pharmacology/pramipexole/ License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/pharmacology/pramipexole/