Vigabatrin (Sabril) is an antiepileptic drug commonly used to treat specific types of seizures, particularly in cases where other treatments have shown poor efficacy. Understanding its indications, dosage forms/characteristics, and proper storage methods is crucial for ensuring drug effectiveness and patient safety.

Indications for Vigabatrin (Sabril)

Refractory Complex Partial Seizures (CPS)

Vigabatrin is indicated as adjunctive therapy for patients aged 2 years and older with refractory complex partial seizures.

These patients must have tried multiple other treatment regimens with inadequate results, and the potential benefits of treatment must outweigh the risk of vision loss.

It is important to note that vigabatrin is not recommended as first-line therapy for complex partial seizures.

Infantile Spasms

Vigabatrin may be used as monotherapy for infantile spasms in infants aged 1 month to 2 years.

It should only be used when a physician assesses that the potential benefits of treatment far outweigh the risk of vision loss.

Dosage Forms and Characteristics of Vigabatrin (Sabril)

Tablets

Strength: Each tablet contains 500 mg of vigabatrin.

Appearance: White, film-coated, oval, biconvex tablets with a score line on one side and the engraving "OV111" on the other side.

Powder for Oral Solution

Strength: Each sachet contains 500 mg of white to off-white granular powder.

Reconstitution: For administration, the powder must be mixed with water to form a solution with a concentration of 50 mg/mL.

Solution Quality: The reconstituted solution should be clear and colorless. If turbidity or particles are present, the solution must be discarded.

Storage Methods for Vigabatrin (Sabril)

Storage Conditions

Both vigabatrin tablets and powder should be stored at room temperature between 20°C and 25°C (68°F and 77°F), and protected from moisture and direct sunlight.

Precautions for Reconstitution and Administration

Mixing Requirements: The powder must be mixed only with cold or room-temperature water; no other liquids should be used.

Dosing Accuracy: A dedicated oral syringe (3 mL or 10 mL) provided by the pharmacy must be used to accurately measure the dose during reconstitution. The use of household teaspoons or tablespoons is strictly prohibited, as incorrect dosing may affect efficacy or increase the risk of side effects.

Immediate Use: The reconstituted solution should be administered immediately. Any unused portion must be discarded and cannot be stored or reused.

Safety Warnings

Keep vigabatrin out of the reach of children to prevent accidental ingestion.

After each dose administration, the oral syringe and mixing cup should be cleaned promptly to maintain hygiene.