Cenobamate is taken orally for partial-onset seizures in adults. Its dietary precautions mainly involve administration methods, alcohol, and the synergistic effects of central nervous system depressants.

I. Administration and Food Intake

1. May Be Taken With or Without Food

Cenobamate may be taken at any time of day, without regard to meals.

No clinically significant pharmacokinetic differences were observed after administration with a high-fat meal.

Patients may take it at a fixed time according to their own habits, without deliberately adjusting their diet.

2. Swallowing Requirements

Tablets should be swallowed whole with liquid.

They must not be crushed or chewed, to avoid affecting drug release and absorption.

If swallowing is difficult, consult a doctor or pharmacist; do not split the tablet on your own.

3. Missed Dose and Overdose Management

A missed dose should be handled according to the doctor's instructions; do not double the dose on your own.

If an overdose is taken accidentally, contact a doctor or go to the emergency department immediately.

There is no specific antidote for overdose; standard medical supportive measures should be taken.

II. Synergistic Risks of Alcohol and CNS Depressants

1. Additive Effects of Alcohol

Concomitant use of cenobamate with other CNS depressants (including alcohol) may increase neurological adverse reactions such as sedation and somnolence.

Alcohol may worsen dizziness, gait instability, and decreased attention.

Alcohol should be avoided during treatment until the drug's effects on the individual are known.

2. Concomitant Use of Other CNS Depressants

Sedative-hypnotics, anxiolytics, and similar drugs may enhance the CNS depressant effects of cenobamate.

During concomitant use, somnolence and sedation should be closely monitored.

Any dose adjustment should be determined by a doctor after evaluation.

3. Contraindications for Driving and Hazardous Operations

Patients should not drive or operate machinery until the effects of cenobamate on themselves are known.

Alcohol or CNS depressants may further impair alertness and coordination.

If marked somnolence or dizziness occurs, hazardous activities should be avoided.

III. Special Dietary and Medication-Related Precautions

1. Diet-Independent Nature of Oral Contraceptive Interaction

Cenobamate may reduce the effectiveness of hormonal oral contraceptives.

This interaction is unrelated to diet, but women of reproductive potential should use additional non-hormonal contraceptive measures.

Dietary adjustment should not be relied upon to avoid this risk.

2. Hepatic and Renal Function and Dietary Burden

The maximum recommended dosage for patients with mild to moderate hepatic impairment is 200 mg once daily.

Use is not recommended in patients with severe hepatic impairment.

Cenobamate should be used with caution in patients with renal impairment, with dosage reduction if necessary; use is not recommended in patients with end-stage renal disease undergoing dialysis.

These populations should avoid high-fat, high-salt, and other diets that increase metabolic burden.

3. Discontinuation and Dietary Coordination

Discontinuation should be gradual, usually over no less than 2 weeks.

Abrupt discontinuation may increase seizure frequency and even cause status epilepticus.

During discontinuation, regular diet and rest should be maintained, and alcohol and CNS depressants should be avoided.