Side effects

Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.

Headache

Difficulty in sleeping (insomnia)

Drowsiness

Confusion

Shaking, usually of the hands (tremor)

Agitation

Blood disorders

Aggression

Skin rashes

Disturbances of the gut such as diarrhoea, constipation, nausea, vomiting or abdominal pain

Visual disturbances

Dizziness

Severe blistering skin reaction affecting the tissues of the eyes, mouth, throat and genitals.(Stevens-Johnson Syndrome)

Shaky movements and unsteady walk (ataxia)

Irritability

Disturbances of liver function

The side effects listed above may not include all of the side effects reported by the drug's manufacturer. For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.

How can this medicine affect other medicines?

Valproate (as sodium valproate, valproate semisodium or valproic acid) increases the blood level of lamotrigine. If you are taking a valproate medicine when you start treatment with lamotrigine, your starting dose of this new medicine will be increased more gradually than normal. You should carefully follow the instructions given to you by your doctor or pharmacist. The following medicines may reduce the blood level of lamotrigine: - carbamazepine - phenobarbitone (phenobarbital) - phenytoin - primidone. If you are taking any of these medicines with lamotrigine your doctor may need to increase your lamotrigine dose. There may be an increased chance of side effects such as headache, dizziness, blurred vision, double vision, sleepiness and nausea if carbamazepine or oxcarbazepine are taken with lamotrigine. If this occurs your doctor may need to reduce the dose of the carbamazepine or oxcarbazepine.

Other medicines containing the same active ingredients

Lamictal

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