From the FDA Drug Label
Rasagiline tablets used as adjunct without levodopa: peripheral edema, fall, arthralgia, cough, and insomnia (6.1) Edema peripheral 2 1
The Parkinsonism drugs that may cause pedal oedema are:
- Rasagiline
- Ropinirole
These drugs have been associated with peripheral edema in clinical trials, as reported in the FDA drug labels 1 and 2.
From the Research
Dopamine agonists, such as pramipexole and ropinirole, are the most common antiparkinsonian medications to cause pedal edema as a side effect, with reported incidence rates of 5-10%. The mechanism behind this side effect involves dopamine's vasodilatory effects and alterations in renal sodium handling 3. Edema typically develops within weeks to months of starting therapy or after dose increases, and it is often dose-dependent.
Management Options
- Dose reduction
- Switching to an alternative medication class
- Adding a diuretic
- Compression stockings Patients should be advised to elevate their legs when sitting, limit salt intake, and report significant swelling promptly. The edema is generally benign but should be monitored to distinguish it from other causes of fluid retention such as heart failure or renal dysfunction.
Medications Associated with Pedal Edema
- Pramipexole (Mirapex)
- Ropinirole (Requip)
- Rotigotine transdermal patches (Neupro)
- Amantadine
- Levodopa/carbidopa combinations A study published in 2022 compared the efficacy of pramipexole and ropinirole in the treatment of Parkinson's disease, and found that both medications were effective in improving motor symptoms, but pramipexole was associated with a higher incidence of edema 4. Another study published in 2010 found that adding orally disintegrating selegiline to patients with Parkinson's disease who were experiencing dopamine agonist-related adverse effects, including pedal edema, resulted in a significant reduction in these adverse effects 5.