What should I watch for?
Visit your doctor for regular check ups. Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse. This medicine will not relieve an acute attack of angina or chest pain.
This medicine can change your heart rhythm. Your health care provider may check your heart rhythm by ordering an electrocardiogram (ECG) while you are taking this medicine.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
If you are scheduled for any medical or dental procedure, tell your healthcare provider that you are taking this medicine. This medicine can interact with other medicines used during surgery.
Common and Rare Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Bloating or swelling of the face, arms, hands, lower legs, or feet
continuous ringing or buzzing or other unexplained noise in the ears
difficult or labored breathing
fast, irregular, pounding, or racing heartbeat or pulse
feeling of constant movement of self or surroundings
rapid weight gain
sensation of spinning
tightness in the chest
tingling of the hands or feet
unusual weight gain or loss
Abnormal or decreased touch sensation
blood in the urine
burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
chest pain or discomfort
decreased urine output
dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
shakiness in the legs, arms, hands, or feet
slow or irregular heartbeat
trembling or shaking of the hands or feet
unusual tiredness or weakness
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Difficulty having a bowel movement (stool)
Lack or loss of strength
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.