Irampanel

Irampanel is a medication used primarily in the treatment of epilepsy. It is classified as an anticonvulsant and works by inhibiting the action of glutamate, a neurotransmitter in the central nervous system.

Mechanism of Action

Irampanel functions as a selective, non-competitive antagonist of the AMPA receptor, a subtype of the glutamate receptor. By inhibiting the action of glutamate, Irampanel reduces the excitatory neurotransmission that can lead to seizures.

Indications

Irampanel is indicated for the treatment of partial-onset seizures with or without secondary generalization in patients with epilepsy. It is also used as an adjunctive therapy for primary generalized tonic-clonic seizures.

Dosage and Administration

Irampanel is available in tablet form and is typically taken once daily at bedtime. The dosage may vary based on the patient's age, weight, and response to the medication. It is important to follow the prescribing physician's instructions carefully.

Side Effects

Common side effects of Irampanel include:

• Dizziness
• Somnolence
• Headache
• Nausea
• Fatigue

Serious side effects may include:

• Suicidal thoughts
• Aggression
• Mood changes

Contraindications

Irampanel is contraindicated in patients with a known hypersensitivity to the drug or any of its components. Caution is advised in patients with a history of depression or psychiatric disorders.

Drug Interactions

Irampanel may interact with other medications, including:

• Carbamazepine
• Phenytoin
• Rifampin

These interactions can affect the efficacy and safety of Irampanel, and it is important to inform the healthcare provider of all medications being taken.

Pharmacokinetics

Irampanel is well-absorbed after oral administration, with peak plasma concentrations occurring within 1-4 hours. It is extensively metabolized in the liver and has a half-life of approximately 105 hours, allowing for once-daily dosing.

History

Irampanel was developed by the pharmaceutical company and received approval from the Food and Drug Administration (FDA) for the treatment of epilepsy in .

Research

Ongoing research is exploring the potential use of Irampanel in other neurological conditions, such as migraine and neuropathic pain.

See Also

• Epilepsy
• Anticonvulsant
• Glutamate receptor
• AMPA receptor