MODERATE — Monitor Closely
CAUTION — avoid grapefruit or consume consistently
Evidence level: STRONG
Grapefruit can increase carbamazepine levels, causing dizziness and other toxicity symptoms.
Grapefruit inhibits intestinal CYP3A4, reducing first-pass metabolism of carbamazepine. Can increase carbamazepine levels and risk of toxicity.
Avoid grapefruit and grapefruit juice while on carbamazepine, or consume the same amount daily and have levels monitored.
Take Carbamazepine at consistent times. Most antiepileptics can be taken with food to reduce GI upset. Grapefruit — grapefruit affects carbamazepine levels. Ketogenic diets are sometimes used therapeutically alongside antiepileptics. Maintain consistent dietary patterns.
Variable grapefruit intake, high carbamazepine dose
Dizziness, double vision, drowsiness, nausea, unsteadiness, headache
Discuss grapefruit avoidance with neurologist.
Antiepileptic drug levels are sensitive to enzyme inducers and inhibitors. Discuss any changes with your neurologist before adding new substances. Safer supplement options: magnesium, omega-3s, and B vitamins are generally well-tolerated alongside seizure medications.
Grapefruit can increase carbamazepine levels, causing dizziness and other toxicity symptoms.
Take Carbamazepine at consistent times. Most antiepileptics can be taken with food to reduce GI upset. Grapefruit — grapefruit affects carbamazepine levels. Ketogenic diets are sometimes used therapeutically alongside antiepileptics. Maintain consistent dietary patterns.
Dizziness, double vision, drowsiness, nausea, unsteadiness, headache
Antiepileptic drug levels are sensitive to enzyme inducers and inhibitors. Discuss any changes with your neurologist before adding new substances. Safer supplement options: magnesium, omega-3s, and B vitamins are generally well-tolerated alongside seizure medications.
Discuss grapefruit avoidance with neurologist.
Or browse the full interaction database (121,000+ pairs).