Nausea, dizziness, drowsiness, lightheadedness, trouble sleeping, constipation, headache, or dry mouth may occur. If these effects persist or worsen, tell your doctor or pharmacist promptly.
To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: fainting, mental/mood changes (such as confusion, depression, hallucinations, memory problems), unusual strong urges (such as increased gambling, increased sexual urges), increased difficulty moving/walking, muscle cramps/spasm, unusual posture changes (such as the neck or body bending forward), restlessness, decreased sexual ability, increased shakiness (tremor)/stiffness, swelling of the ankles/feet.
Get medical help right away if you have any very serious side effects, including: chest pain, fever, unusually fast/slow/irregular heartbeat, muscle pain/weakness, unusual tiredness, signs of kidney problems (such as change in the amount of urine), vision changes.
Some people taking pramipexole have fallen asleep suddenly during their usual daily activities (such as talking on the phone, driving). In some cases, sleep occurred without any feelings of drowsiness beforehand. This sleep effect may occur anytime during treatment with pramipexole even if you have used this medication for a long time. If you experience increased sleepiness or fall asleep during the day, do not drive or take part in other possibly dangerous activities until you have discussed this effect with your doctor. Your risk of this sleep effect is increased by using alcohol or other medications that can make you drowsy. See also Precautions section.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.