What should I watch for?
Tell your doctor if your symptoms do not get better or if they get worse. Visit your doctor or health care professional for regular checks on your progress. Because it may take several weeks to see the full effects of this medicine, it is important to continue your treatment as prescribed by your doctor.
Patients and their families should watch out for new or worsening thoughts of suicide or depression. Also watch out for sudden changes in feelings such as feeling anxious, agitated, panicky, irritable, hostile, aggressive, impulsive, severely restless, overly excited and hyperactive, or not being able to sleep. If this happens, especially at the beginning of treatment or after a change in dose, call your health care professional.
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.
Do not treat yourself for coughs, colds, or allergies without asking your doctor or health care professional for advice. Some ingredients can increase possible side effects.
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.
This medicine may cause dry eyes and blurred vision. If you wear contact lenses you may feel some discomfort. Lubricating drops may help. See your eye doctor if the problem does not go away or is severe.
This medicine can cause constipation. Try to have a bowel movement at least every 2 to 3 days. If you do not have a bowel movement for 3 days, call your doctor or health care professional.
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.
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:
bloody or cloudy urine
body aches or pain
burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
difficult, burning, or painful urination
dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
excessive muscle tone
fear or nervousness
feeling sad or empty
lower back or side pain
muscle stiffness, tension, or tightness
rhythmic movement of muscles
tightness of the chest
unusual tiredness or weakness
Anger that is hard to control
burning feeling while urinating
changes in vision
decrease in the frequency of urination
difficulty in passing urine (dribbling)
difficulty in speaking
fast, irregular, pounding, or racing heartbeat or pulse
headache, severe and throbbing
nausea or vomiting
numbness, tingling, pain, or weakness in the hands or feet
pain during sexual intercourse
rapidly changing moods
swelling of the face, fingers, feet, or lower legs
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:
Blistering, crusting, irritation, itching, or reddening of the skin
change in taste
cracked, dry, or scaly skin
change in interest in sexual intercourse
hives or welts, skin rash
inability to have or keep an erection
increased interest in sexual intercourse
redness of the face, neck, arms, and occasionally, upper chest
shakiness in the legs, arms, hands, or feet
stomach discomfort, upset, or pain
trembling or shaking of the hands or feet
Absent, missed, or irregular menstrual periods
sores, ulcers, or white spots on the lips or tongue or inside the mouth
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.