Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop taking pramipexole and call your doctor at once if you have any of these serious side effects:
extreme drowsiness, falling asleep suddenly, even after feeling alert;
hallucinations;
fever, stiff muscles, confusion, sweating, fast or uneven heartbeats;
nausea, sweating, feeling light-headed, fainting; or
restless muscle movements in your eyes, tongue, jaw, or neck.
Less serious side effects may include:
constipation, upset stomach, loss of appetite;
dry mouth, trouble swallowing;
urinating more often than usual;
mild drowsiness or sleepiness;
sleep problems (insomnia), unusual dreams;
amnesia, forgetfulness, thinking problems;
headache, confusion, weakness;
blurred vision;
joint pain, muscle weakness;
swelling in your hands or feet;
runny or stuffy nose;
weight loss;
