Retigabine (brand name Trobalt) is an antiepileptic drug used to treat partial-onset seizures in people with epilepsy. It is a potassium channel opener and works by increasing the duration of the time that potassium channels are open in the brain, which helps to stabilize neuronal membranes and reduces the amount of electrical activity in the brain. It is typically used in combination with other antiepileptic medications to treat seizures that are not adequately controlled by the other medications. Retigabine is available as tablets or an oral solution and is typically taken twice daily. Common side effects include dizziness, fatigue, and nausea.
Retigabine, also known by the brand names Trobalt (Europe) and Potiga (US), is a medication used as an add-on treatment for a specific type of epilepsy in adults. Here's a breakdown of its key points:
Condition it treats:
- Partial-onset seizures in adults: Retigabine is not a first-line treatment for epilepsy but is used as an adjunct therapy for patients whose seizures are not adequately controlled by other medications.
How it works:
- Unique mechanism: Unlike many epilepsy drugs that target sodium channels or GABA neurotransmission, Retigabine works primarily by opening a specific type of potassium channel in the brain. This helps regulate nerve cell activity and reduces hyperexcitability, thereby controlling seizures.
Dosage and administration:
- Taken orally (by mouth) as tablets or capsules. The dosage is individualized based on factors like weight, response to treatment, and potential side effects.
Important considerations:
- Discontinued production: It's important to note that Retigabine production was discontinued in June 2017. While existing stock may still be available, it's not a widely used medication anymore. Doctors may prescribe alternative medications for partial-onset seizures.
Potential side effects:
- Dizziness is a common side effect of Retigabine. Other potential side effects include somnolence (sleepiness), headache, tremor, and speech problems.
- Mental health changes: Retigabine may worsen symptoms of depression or anxiety in some people.
Before using Retigabine:
- Inform your doctor about any allergies, medical conditions (especially mental health issues), and medications you're taking (including over-the-counter drugs and supplements).
- Retigabine may interact with other medications, so it's crucial to disclose your complete medication history.
- Pregnancy and breastfeeding: Retigabine is not recommended for pregnant or breastfeeding women due to potential risks to the developing baby.