Pramipexol

Additional information

Pharmacokinetics and dosing

In a pharmacokinetic study in healthy volunteers (8 men, 8 women), AUC and Cmax of pramipexol were signficantly greater in women for the dose 1.5 mg. The mean creatinine clearance was lower in women than in (80.9 ±15.6 vs. 112 ±12.8 mL/min/1.73 m2). However, women had higher mean age in this study, and aging leads to a decline in glomerular filtration rate. The normal range of glomerular filtration rate, measured by inulin clearance, is lower for women. Therefore, the influence of sex could not be distinguished from the influence of age and the resulting reduced creatinine clearance [1]. Pramipexole clearance has shown to be about 30% lower in women than in men, but this difference can be accounted for by differences in body weight. There was no difference in half-life between men and women [2].

Therapy with pramipexole should be initiated at a low dose and gradually titrated upward according to clinical tolerability to obtain the optimum therapeutic effect. It is not necessary to adjust the initial dose based on sex [2].

Effects

No studies with a clinically relevant sex analysis regarding the effects of pramipexole have been found.

Adverse effects

No sex-related differences in adverse events have been observed among patients with Parkinson’s disease treated with pramipexole in clinical trials. Among RLS patients, nausea and fatigue were more frequently reported by women than men [2].

Reproductive health issues

Regarding teratogenic aspects, please consult the Drugs and Birth Defects Database (in Swedish, Janusmed fosterpåverkan).