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:
More common- Chest pain (severe)
- Enlarged pupils
- Fast or slow heartbeat
- Headache (severe)
- Increase in unusual movements of the body
- Increased sensitivity of the eyes to light
- Increased sweating (possibly with fever or cold, clammy skin)
- Mood or other mental changes
- Nausea and vomiting (severe)
- Stiff or sore neck
- Bloody or black, tarry stools
- Bruising
- Convulsions (seizures)
- Decreased urine
- Difficult or frequent urination
- Difficulty with breathing
- Difficulty with speaking
- Difficulty with swallowing
- Dizziness or lightheadedness, especially when getting up from a lying or sitting position
- Dry mouth
- Hallucinations (seeing, hearing, or feeling things that are not there)
- Increased thirst
- Irregular heartbeat
- Large, flat, blue, or purplish patches in the skin
- Lip smacking or puckering
- Loss of appetite
- Loss of balance control
- Muscle pain or cramps
- Nausea or vomiting
- Numbness or tingling in the hands, feet, or lips
- Puffing of the cheeks
- Rapid or worm-like movements of the tongue
- Restlessness or desire to keep moving
- Severe stomach pain
- Shakiness in the legs, arms, hands, or feet
- Shortness of breath
- Swelling of the feet or lower legs
- Swelling or inflammation of the mouth
- Tightness in the chest
- Trembling or shaking of the hands or feet
- Twisting movements of the body
- Uncontrolled chewing movements
- Uncontrolled movements of the face, neck, back, arms, or legs
- Unusual tiredness or weakness
- Vomiting of blood or material that looks like coffee grounds
- Wheezing
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose- Agitation or irritability
- Chest pain
- Difficulty opening the mouth or lockjaw
- Dizziness (severe) or fainting
- Fast or irregular pulse (continuing)
- High fever
- High or low blood pressure
- Severe spasm where the head and heels are bent backward and the body arched forward
- Troubled breathing
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:
More common- Abdominal or stomach pain
- Dizziness or feeling faint
- Runny nose
- Sneezing
- Stuffy nose
- Trouble with sleeping
- Anxiety
- Back or leg pain
- Blurred or double vision
- Body aches or pain
- Burning of the lips, mouth, or throat
- Chills
- Constipation
- Cough
- Diarrhea
- Drowsiness
- Dryness or soreness of the throat
- Frequent urge to urinate
- Headache
- Heartburn
- Inability to move
- Increased sweating
- Irritability (temporary)
- Memory problems
- Nervousness
- Pounding or fast heartbeat
- Rash
- Red, raised, or itchy skin
- Ringing or buzzing in the ears
- Slow or difficult urination
- Slowed movements
- Taste changes
- Uncontrolled closing of the eyelids
- Unusual feeling of well-being
- Unusual weight loss
- Voice changes
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.


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