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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- Inability to sit still
- Restlessness
- Skin rash, hives, or itching
- Chills or fever
- Joint or muscle pain
- Anxiety or nervousness
- Cold sweats
- Confusion
- Convulsions (seizures)
- Cool pale skin
- Diarrhea
- Difficulty with concentration
- Drowsiness
- Dryness of the mouth
- Excessive hunger
- Fast or irregular heartbeat
- Headache
- Increased sweating
- Increased thirst
- Lack of energy
- Mood or behavior changes
- Overactive reflexes
- Purple or red spots on the skin
- Racing heartbeat
- Shakiness or unsteady walk
- Shivering or shaking
- Talking, feeling, and acting with excitement and activity you cannot control
- Trouble with breathing
- Unusual or incomplete body or facial movements
- Unusual tiredness or weakness
- Abdominal or stomach pain
- Agitation
- Back or leg pains
- Bleeding gums
- Blindness
- Blistering, peeling, or loosening of the skin
- Bloating
- Blood in the urine or stools
- Bloody, black, or tarry stools
- Blue-yellow color blindness
- Blurred vision
- Chest pain or discomfort
- Clay-colored stools
- Constipation
- Continuing vomiting
- Cough or dry cough
- Dark urine
- Decreased urine output
- Decreased vision
- Depression
- Difficulty with breathing
- Difficulty with swallowing
- Dizziness or lightheadedness
- Eye pain
- Fainting
- Fast, pounding, or irregular heartbeat or pulse
- General body swelling
- High fever
- High or low blood pressure
- Hives, itching, puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
- Hostility
- Indigestion
- Irregular or slow heart rate
- Irritability
- Large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
- Light-colored stools
- Loss of appetite
- Loss of bladder control
- Muscle twitching
- Nausea
- Nightmares
- No blood pressure or pulse
- Noisy breathing
- Nosebleeds
- Pain in the ankles or knees
- Painful, red lumps under the skin, mostly on the legs
- Pains in the stomach, side, or abdomen, possibly radiating to the back
- Pinpoint red spots on the skin
- Rapid weight gain
- Red or irritated eyes
- Red skin lesions, often with a purple center
- Redness, tenderness, itching, burning, or peeling of the skin
- Severe muscle stiffness
- Severe sleepiness
- Shortness of breath
- Skin rash
- Slurred speech
- Sore throat
- Sores, ulcers, or white spots on the lips or in the mouth
- Stopping of heart
- Sudden shortness of breath or troubled breathing
- Sudden weakness in the arms or legs
- Sudden, severe chest pain
- Swelling of the face, ankles, or hands
- Swollen or painful glands
- Thoughts of killing oneself
- Tightness in the chest
- Tiredness
- Twitching, twisting, or uncontrolled repetitive movements of the tongue, lips, face, arms, or legs
- Unconsciousness
- Unpleasant breath odor
- Unusual bleeding or bruising
- Unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness
- Unusually pale skin
- Use of extreme physical or emotional force
- Vomiting of blood
- Wheezing
- Yellow eyes or skin
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- Decreased appetite
- Decreased sexual drive or ability
- Abnormal dreams
- Breast enlargement or pain
- Change in sense of taste
- Changes in vision
- Feeling of warmth or heat
- Flushing or redness of the skin, especially on face and neck
- Frequent urination
- Hair loss
- Increased appetite
- Increased sensitivity of the skin to sunlight
- Menstrual pain
- Stomach cramps, gas, or pain
- Unusual secretion of milk, in females
- Weight loss
- Yawning
- Cracks in the skin
- Loss of heat from the body
- Painful or prolonged erections of the penis
- Scaly skin
- Swelling of the breasts or breast soreness in both females and males
- Unusual milk production
After you stop using this medicine, it may still produce some side effects that need attention. During this period of time, check with your doctor immediately if you notice the following side effects:
- Actions that are out of control
- Burning, crawling, itching, numbness, prickling, “pins and needles”, or tingling feeling
- Crying
- Depersonalization
- Dizziness
- Euphoria
- Feeling of distress
- Feeling that body or surroundings are turning
- General feeling of discomfort or illness
- Paranoia
- Quick to react or overreact emotionally
- Rapidly changing moods
- Sleeplessness
- Sweating
- Unable to sleep
- Vaginal bleeding
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.
