What should I watch for?
Visit your doctor or health care professional for regular checks on your progress. It may be several weeks before you see the full effects of this medicine. Do not suddenly stop taking this medicine. Your doctor may want you to gradually reduce the dose.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this drug 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 can make you more drowsy and dizzy. Avoid alcoholic drinks.
This medicine can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths.
This medicine can reduce the response of your body to heat or cold. Dress warm in cold weather and stay hydrated in hot weather. If possible, avoid extreme temperatures like saunas, hot tubs, very hot or cold showers, or activities that can cause dehydration such as vigorous exercise.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.
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:
difficulty with speaking
fear or nervousness
inability to sit still
loss of balance control
muscle trembling, jerking, or stiffness
need to keep moving
stiffness of the limbs
twisting movements of the body
uncontrolled movements, especially of the face, neck, and back
body aches or pain
fast, pounding, or irregular heartbeat or pulse
pounding in the ears
slow or fast heartbeat
swelling of the tongue
tender, swollen glands in the neck
trouble with swallowing
Dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
persistent, painful erection
Incidence not known
Inability to move the eyes
increased blinking or spasms of the eyelid
sticking out of tongue
trouble with breathing
uncontrolled twisting movements of the neck, trunk, arms, or legs
unusual facial expressions
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:
Acid or sour stomach
lack or loss of strength
stomach discomfort, upset, or pain
Blistering, crusting, irritation, itching, or reddening of the skin
burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
change in vision
cracked, dry, or scaly skin
difficulty with moving
increase in salivation
itching or reddening of the skin
loss of appetite
muscle pains or stiffness
weakness of the arms and legs
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.