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 or nurse immediately if any of the following side effects occur:
Rare- Bluish color of the fingernails, lips, skin, palms, or nail beds
- Blurred vision
- Burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
- Chest pain or discomfort
- Confusion
- Cough
- Decreased awareness or responsiveness
- Difficult or labored breathing
- Difficulty swallowing
- Dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
- Fainting
- Feeling of warmth
- Fever
- General feeling of discomfort or illness
- Headache
- Hives
- Hoarseness
- Increased salivation
- Itching
- Loss of bladder control
- Loss of consciousness
- Low blood pressure or pulse
- Nervousness
- Pounding in the ears
- Puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
- Redness of the face, neck, arms, and occasionally, upper chest
- Seizures
- Shakiness in the legs, arms, hands, or feet
- Shortness of breath
- Skin rash
- Slow, fast, or irregular breathing
- Spasm of the throat
- Sweating
- Tightness in the chest
- Trembling or shaking of the hands or feet
- Unconsciousness
- Unusual tiredness or weakness
- Wheezing
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:
Less common- Bad, unusual, or unpleasant (after) taste
- Nausea
- Abdominal or stomach cramps
- Anxiety
- Bleeding gums
- Bleeding, blistering, burning, coldness, discoloration of the skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, ulceration, or warmth at the injection site
- Continuing ringing or buzzing or other unexplained noise in the ears
- Diarrhea
- Dry mouth
- Hearing loss
- Irritation in the mouth
- Loss of coordination in the arms
- Mouth ulcers
- Rash with flat lesions or small raised lesions on the skin
- Redness and swelling of the gums
- Runny nose
- Sneezing
- Stuffy nose
- Tingling sensation in the throat
- Voice changes
- Vomiting
- Watery eyes
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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