What should I watch for?
Visit your doctor for regular check ups. This prescription requires that you follow special procedures with your doctor and pharmacy. You will need to have a new written prescription from your doctor every time you need a refill.
This medicine may affect your concentration, or hide signs of tiredness. Until you know how this medicine affects you, do not drive, ride a bicycle, use machinery, or do anything that needs mental alertness.
Tell your doctor or health care professional if this medicine loses its effects, or if you feel you need to take more than the prescribed amount. Do not change your dose without talking to your doctor or health care professional.
Decreased appetite is a common side effect when starting this medicine. Eating small, frequent meals or snacks can help. Talk to your doctor if you continue to have poor eating habits. Height and weight growth of a child taking this medicine will be monitored closely.
Do not take this medicine close to bedtime. It may prevent you from sleeping.
If you are going to need surgery, a MRI, CT scan, or other procedure, tell your doctor that you are taking this medicine. You may need to stop taking this medicine before the procedure.
Tell your doctor or healthcare professional right away if you notice unexplained wounds on your fingers and toes while taking this medicine. You should also tell your healthcare provider if you experience numbness or pain, changes in the skin color, or sensitivity to temperature in your fingers or toes.
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:
Uncontrolled vocal outbursts or tics (uncontrolled repeated body movements)
Incidence not known
Blistering, peeling, or loosening of the skin
chest discomfort or pain
difficulty with breathing
difficulty with swallowing
fast, irregular, pounding, or racing heartbeat or pulse
feeling sad or empty
joint or muscle pain
lack of appetite
large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
loss of interest or pleasure
puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
red skin lesions, often with a purple center
red, irritated eyes
redness of the skin
sores, ulcers, or white spots in the mouth or on the lips
swelling of the feet or lower legs
tightness in the chest
twitching, twisting, or uncontrolled repetitive movements of the tongue, lips, face, arms, or legs
unusual tiredness or weakness
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
Abdominal or stomach cramps
change in consciousness
dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
loss of consciousness
muscle cramps or spasms
muscle pain or stiffness
physical attempt to injure yourself
pounding in the ears
seeing, hearing, or feeling things that are not there
shakiness in the legs, arms, hands, or feet
trembling or shaking of the hands or feet
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:
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.