Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Some people taking pramipexole have fallen asleep during normal daytime activities such as working, talking, eating, or driving. Tell your doctor if you have any problems with daytime sleepiness or drowsiness.
Call your doctor at once if you have:
a light-headed feeling, like you might pass out;
hallucinations (seeing or hearing things that are not real);
extreme drowsiness, falling asleep suddenly, even after feeling alert;
tremors, twitching or uncontrollable muscle movements;
unexplained muscle pain, tenderness, or weakness;
vision problems; or
posture changes you cannot control, such as involuntary bending forward of your neck, bending forward at the waist, or tilting sideways when you sit, stand, or walk.
Side effects such as confusion or hallucinations may be more likely in older adults.
You may have increased sexual urges, unusual urges to gamble, or other intense urges while taking this medicine. Talk with your doctor if this occurs.
Common side effects may include:
muscle spasm or muscle weakness;
drowsiness, dizziness, weakness;
confusion, memory problems;
dry mouth;
nausea, constipation;
increased urination; or
sleep problems (insomnia), unusual dreams.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Pramipexole side effects (more detail)
