What should I watch for?
Check your heart rate and blood pressure regularly while you are taking this medicine. Ask your doctor or health care professional what your heart rate and blood pressure should be, and when you should contact him or her. Do not stop taking this medicine suddenly. This could lead to serious heart-related effects.
Contact your doctor or health care professional if you have difficulty breathing while taking this drug.
Check your weight daily. Ask your doctor or health care professional when you should notify him/her of any weight gain.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that requires mental alertness until you know how this medicine affects you. To reduce the risk of dizzy or fainting spells, do not sit or stand up quickly. Alcohol can make you more drowsy, and increase flushing and rapid heartbeats. Avoid alcoholic drinks.
If you have diabetes, check your blood sugar as directed. Tell your doctor if you have changes in your blood sugar while you are taking this medicine.
If you are going to have surgery, tell your doctor or health care professional that you are taking this medicine.
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:
chest pain, discomfort, tightness, or heaviness
dizziness, lightheadedness, or fainting
generalized swelling or swelling of the feet, ankles, or lower legs
shortness of breath
Ankle, knee, or great toe joint pain
arm, back, or jaw pain
blood in the urine
bloody, black or tarry stools
cool pale skin
decreased frequency or amount of urine
difficulty with breathing
dizziness, faintness, or lightheadedness when getting up suddenly from a lying position
fast or irregular heartbeat
flushed, dry skin
fruit-like breath odor
headache, sudden and severe
inability to speak
increased blood pressure
joint stiffness or swelling
large amount of cholesterol in the blood
loss of appetite
loss of consciousness
lower back, side, or stomach pain
muscle pain or cramps
noisy, rattling breathing
numbness or tingling in the hands, feet, or lips
pinpoint red or purple spots on the skin
pounding in the ears
pounding, slow heartbeat
swelling of the fingers or hands
tenderness on the upper right side of the body
trouble with breathing even at rest
unexplained weight loss
unusual bleeding or bruising
weakness in the arm and/or leg on one side of the body, sudden and severe
weakness or heaviness of the legs
yellow eyes or skin
Incidence not known
Sores, ulcers, or white spots on the lips or in the mouth
swollen or painful glands
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:
Abdominal or stomach pain
burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
changes in vision
cold hands and feet
decreased interest in sexual intercourse
difficulty with moving
feeling of constant movement of self or surroundings
general feeling of discomfort or illness
inability to have or keep an erection
joint or muscle pain
lack or loss of strength
loss of sexual ability, desire, or performance
loss of strength or energy
muscle aches, stiffness, or weakness
persistent breath odor or bad taste in your mouth
redness and swelling of the gums
sensation of spinning
sleepiness or unusual drowsiness
stuffy or runny nose
sugar in the urine
unusual weak feeling
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.