Mirapex (Pramipexole Dihydrochloride) - Drug Interactions, Contraindications, Overdosage, etc

DRUG INTERACTIONS

See also Dosage and Administration (2.2) and Clinical Pharmacology (12.3).

Dopamine Antagonists

Since pramipexole is a dopamine agonist, it is possible that dopamine antagonists, such as the neuroleptics (phenothiazines, butyrophenones, thioxanthenes) or metoclopramide, may diminish the effectiveness of MIRAPEX tablets.

Drug/Laboratory Test Interactions

There are no known interactions between pramipexole and laboratory tests.

OVERDOSAGE

There is no clinical experience with significant overdosage. One patient took 11 mg/day of pramipexole for 2 days in a clinical trial for an investigational use. Blood pressure remained stable although pulse rate increased to between 100 and 120 beats/minute. No other adverse events were reported related to the increased dose.

There is no known antidote for overdosage of a dopamine agonist. If signs of central nervous system stimulation are present, a phenothiazine or other butyrophenone neuroleptic agent may be indicated; the efficacy of such drugs in reversing the effects of overdosage has not been assessed. Management of overdose may require general supportive measures along with gastric lavage, intravenous fluids, and electrocardiogram monitoring.

CONTRAINDICATIONS

None.

DRUG ABUSE AND DEPENDENCE

Controlled Substance

Pramipexole is not a controlled substance.

Abuse and Dependence

Pramipexole has not been systematically studied in animals or humans for its potential for abuse, tolerance, or physical dependence. However, in a rat model on cocaine self-administration, pramipexole had little or no effect.