Levetiracetam Orion (Levetiracetam)

Levetiracetam is an antiepileptic medication that reduces abnormal neuronal firing in the brain.

• Partial‑onset seizures: helps achieve seizure control and reduce episode frequency.
• Generalized tonic‑clonic seizures: contributes to seizure freedom and lowers risk of convulsive episodes.
• Myoclonic seizures: diminishes myoclonic jerks and improves daily functioning.

• Levetiracetam binds to the synaptic vesicle protein SV2A, modulating neurotransmitter release and stabilizing neuronal membranes. This interaction reduces synaptic excitability, thereby decreasing the likelihood of seizure initiation and propagation across diverse seizure types.

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

Common Side Effects

• Dizziness: transient sensation of light‑headedness.
• Fatigue: feeling unusually tired or low in energy.
• Somnolence: increased sleepiness during the day.
• Headache: mild to moderate head pain.

Serious or Rare Side Effects

• Stevens‑Johnson syndrome: severe skin reaction requiring immediate medical attention.
• Suicidal ideation: thoughts of self‑harm that must be reported promptly.
• Severe rash or hypersensitivity: extensive skin eruptions or allergic response.
• Blood dyscrasias: rare abnormalities in blood cell counts.

Before initiating therapy, clinicians should evaluate patient‑specific factors and monitor for potential risks.

• Renal impairment: adjust dose based on creatinine clearance.
• Hepatic impairment: use with caution; monitor liver function tests.
• Psychiatric disorders: observe for mood changes or aggression.
• Pregnancy: safety not established; weigh benefits against potential risks.
• Elderly patients: start at lower dose and titrate slowly.
• Store at ambient temperature: keep in the original container, protect from moisture and heat.

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

Major Interactions (Avoid)

• Carbamazepine: reduces levetiracetam plasma levels.
• Phenytoin: may decrease levetiracetam exposure.
• Phenobarbital: can lower levetiracetam concentrations.
• Enzyme‑inducing antiepileptics: overall decrease efficacy.

Moderate Interactions (Monitor Closely)

• Valproic acid: may increase levetiracetam levels.
• Fluconazole: potential modest increase in exposure.
• Oral contraceptives: monitor for reduced contraceptive effectiveness.
• NSAIDs: watch for additive central nervous system effects.