Levetiracetam (Intravenous Route)

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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 or nurse immediately if any of the following side effects occur:

• Cough or hoarseness
• Fever or chills
• Lower back or side pain
• Painful or difficult urination

• Black, tarry stools
• Bleeding gums
• Blistering, peeling, or loosening of the skin
• Bloating
• Blood in the urine or stools
• Changes in behavior
• Constipation
• Darkened urine
• Diarrhea
• Fast heartbeat
• General tiredness and weakness
• Indigestion
• Itching
• Joint or muscle pain
• Light-colored stools
• Loss of appetite
• Nausea and vomiting
• Pains in the stomach, side, or abdomen, possibly radiating to the back
• Pale skin
• Pinpoint red spots on the skin
• Red skin lesions, often with a purple center
• Red, irritated eyes
• Restlessness or agitation
• Shortness of breath
• Sore throat
• Sores, ulcers, or white spots in the mouth or on the lips
• Thoughts or attempts at killing oneself
• Twitching, twisting, or uncontrolled repetitive movements of the tongue, lips, face, arms, or legs
• Ulcers, sores, or white spots in the mouth
• Uncontrolled jerking or twisting movements of the hands, arms, or legs
• Uncontrolled movements of the lips, tongue, or cheeks
• Unusual bleeding or bruising
• Unusual tiredness or weakness
• Upper right abdominal or stomach pain
• Yellow eyes or skin

Get emergency help immediately if any of the following symptoms of overdose occur:

• Anxiety
• Attack, assault, or force
• Decrease, loss, or change in consciousness
• Difficult or troubled breathing
• Dry mouth
• Hyperventilation
• Irregular, fast or slow, or shallow breathing
• Irregular heartbeats
• Irritability
• Pale or blue lips, fingernails, or skin
• Restlessness
• Shaking
• Sleepiness or unusual drowsiness
• Trouble with sleeping

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:

• Body aches or pain
• Congestion
• Dizziness
• Headache
• Lack or loss of strength
• Pain
• Runny nose
• Tender, swollen glands in the neck
• Trouble with swallowing
• Voice changes

• Aggressive or angry
• Burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
• Crying
• Depersonalization
• Discouragement
• Double vision or seeing double
• Dysphoria
• Euphoria
• Feeling of constant movement of self or surroundings
• Feeling sad or empty
• Lightheadedness
• Loss of interest or pleasure
• Loss of memory
• Loss or lack of appetite
• Mental depression
• Pain or tenderness around the eyes and cheekbones
• Paranoia
• Problems with memory
• Quick to react or overreact emotionally
• Rapidly changing moods
• Rash
• Sensation of spinning
• Shakiness and unsteady walk
• Sneezing
• Stuffy nose
• Tightness of the chest or wheezing
• Tiredness
• Trouble concentrating
• Troubled breathing
• Unsteadiness, trembling, or other problems with muscle control or coordination
• Weight loss

• Hair loss or thinning of the hair

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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