See also Warning section.
Shaking, headache, dizziness, unusual growth of body hair, nausea/vomiting, diarrhea, stomach upset, or flushing may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
Unusual growth and swelling of the gums may occur. Brush your teeth and floss daily to reduce this problem. See your dentist regularly.
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.
This medication may raise your blood pressure. Check your blood pressure regularly and tell your doctor if the results are high. Your doctor may control your blood pressure with medication.
Tell your doctor right away if you have any serious side effects, including: signs of kidney problems (such as a change in the amount of urine), signs of liver disease (such as nausea/vomiting that doesn't stop, dark urine, yellowing eyes/skin, stomach/abdominal pain), easy bruising/bleeding, unusual tiredness, muscle weakness/spasms, slow/irregular heartbeat, numb/tingling skin, severe leg pain.
Get medical help right away if you have any very serious side effects, including: mental/mood changes (such as confusion, difficulty concentrating), vision changes, problems with speech, clumsiness, loss of coordination, weakness on one side of the body, seizures, chest pain.
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.