Keppra (Levetiracetam)

• Levetiracetam is an anticonvulsant used to manage seizure disorders.
• Partial seizures: Reduces the frequency and severity of focal onset seizures, helping patients achieve better seizure control.
• Generalized tonic-clonic seizures: Controls bilateral convulsive episodes, decreasing the occurrence of full-body seizures.
• Myoclonic seizures: Decreases rapid, brief muscle jerks, improving daily functioning for individuals with this seizure type.

• Levetiracetam binds to the synaptic vesicle protein SV2A, a key regulator of neurotransmitter release. This interaction modulates synaptic transmission, stabilizing neuronal firing and reducing hyper‑excitability that leads to seizures. By influencing the release of excitatory and inhibitory neurotransmitters, the drug helps maintain a balanced neural environment without directly affecting ion channels or receptor agonism.

Levetiracetam may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects

• Fatigue: Persistent tiredness or lack of energy.
• Dizziness: Light‑headed sensation, especially when standing quickly.
• Somnolence: Increased sleepiness during the day.
• Irritability: Mood changes leading to agitation.
• Headache: Mild to moderate cranial pain.
• Nausea: Upset stomach, sometimes with vomiting.

Serious or Rare Side Effects

• Severe allergic reactions: Rash, swelling, or difficulty breathing.
• Stevens‑Johnson syndrome: Rare but serious skin disorder.
• Suicidal thoughts: Emerging depression or self‑harm ideation.
• Major mood changes: Depression or severe anxiety.
• Severe skin rash: Including toxic epidermal necrolysis.
• Hematologic abnormalities: Unusual bruising or bleeding.

• When prescribing levetiracetam, several safety considerations should be observed.
• Monitor renal function: Adjust dose in patients with impaired clearance.
• Assess mood: Watch for depression, anxiety, or suicidal ideation.
• Pregnancy: Use only if the potential benefit justifies the potential risk to the fetus.
• Concomitant CNS depressants: Use with caution as combined effects may increase sedation.
• Avoid abrupt discontinuation: Taper under medical supervision to prevent seizure worsening.
• Store at ambient temperature: Keep in the original container, protect from moisture and heat.

Levetiracetam can interact with other medicines, influencing its effectiveness or safety.

Major Interactions (Avoid)

• Carbamazepine: May reduce levetiracetam plasma levels, decreasing efficacy.
• Phenobarbital: Can lower levetiracetam concentrations, risking seizure breakthrough.
• Phenytoin: May decrease levetiracetam exposure, requiring dose adjustment.

Moderate Interactions (Monitor Closely)

• Alcohol: May enhance central nervous system depression, increasing drowsiness.
• Other antiepileptics (valproate, lamotrigine): May require dose modifications for optimal control.
• Oral contraceptives: Levetiracetam may reduce hormonal contraceptive effectiveness, necessitating additional birth control methods.