Lamotrigine (Oral 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 immediately if any of the following side effects occur:

• Blurred vision
• Changes in vision
• Clumsiness or unsteadiness
• Double vision
• Poor coordination
• Skin rash

• Anxiety
• Chest pain
• Confusion
• Continuous, uncontrolled back and forth or rolling eye movements
• Depression
• Increase in seizures
• Infection
• Irritability

• Blistering, peeling, or loosening of the skin
• Chills
• Dark-colored urine
• Fever
• Flu-like symptoms
• Itching
• Memory loss
• Muscle cramps, pain, or weakness
• Red or irritated eyes
• Small red or purple spots on the skin
• Sore throat
• Sores, ulcers, or white spots on the lips or in the mouth
• Swelling of the face, mouth, hands, or feet
• Swollen lymph nodes
• Trouble with breathing
• Unusual bleeding or bruising
• Unusual tiredness or weakness
• Yellow eyes or skin

• Back, leg, or stomach pains
• Bleeding gums
• Bloating
• Blood in the urine
• Bloody, black or tarry stools
• Bluish lips or skin
• Bruising
• Constipation
• Cough or hoarseness
• Coughing or vomiting blood
• Difficulty with breathing
• Difficulty with swallowing
• Fainting
• Fast heartbeat
• General body swelling
• General feeling of discomfort or illness
• General feeling of tiredness or weakness
• Heartburn
• High fever
• Lightheadedness
• Loss of appetite
• Loss of balance control
• Lower back or side pain
• Mask-like face
• Muscle spasms
• Nosebleeds
• Not breathing
• Pain or burning in the throat
• Painful or difficult urination
• Pains in the stomach, side, or abdomen, possibly radiating to the back
• Pale skin
• Persistent bleeding or oozing from puncture sites, mouth, or nose
• Rapid, shallow breathing
• Redness, soreness, or itching skin
• Shortness of breath
• Shuffling walk
• Slowed movement
• Slurred speech
• Sores, welting, or blisters
• Stiffness of the arms and legs
• Swollen or painful glands
• Tic-like (jerky) movements
• Tightness in the chest
• Unexplained bleeding or bruising
• Wheezing

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

• Clumsiness or unsteadiness (severe)
• Coma
• Continuous, uncontrolled back and forth or rolling eye movements (severe)
• Dizziness (severe)
• Drowsiness (severe)
• Dryness of the mouth (severe)
• Headache (severe)
• Increased heart rate
• Slurred speech (severe)

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:

• Dizziness
• Drowsiness
• Headache
• Nausea
• Vomiting

• Diarrhea
• Indigestion
• Loss of strength
• Menstrual pain
• Pain
• Runny nose
• Trembling or shaking
• Trouble with sleeping
• Unusual weight loss

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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