What it's used for
Oxcarbazepine oral suspension is used either alone or as add-on therapy to treat partial-onset seizures in adults, and as monotherapy or adjunctive therapy in pediatric patients starting at ages 4 and 2 years, respectively.
Source: U.S. FDA-approved prescribing information (openFDA).
Typical dosing
Adults typically initiate therapy at 600 mg per day given twice daily, with adjunctive therapy incremented by up to 600 mg per day at weekly intervals to a recommended daily dose of 1,200 mg.
Dosing shown here is the general FDA-labeled range. Your prescribing clinician determines the exact dose, form, and schedule for you — this is not a substitute for medical advice.
Common side effects
Serious adverse reactions described include low sodium levels, allergic reactions, serious skin reactions, and suicidal behavior or ideation.
Covered strengths on the Tab $0 list
Covered at $0 with an active Tab membership when filled at a participating pharmacy nationwide or through mail order. A licensed clinician must prescribe the medication.
Related medications
Other everything else medications covered at $0 with an active Tab membership.
Oxcarbazepine cost without insurance
Cash prices for Oxcarbazepine without insurance vary widely by pharmacy, strength and quantity — the same prescription can cost very different amounts at two pharmacies in the same town. That is the problem a membership solves.
Oxcarbazepine is on Tab's covered $0 generic list. With an active Tab membership, every covered strength is $0 — not a percentage off, not a coupon that changes month to month — at participating pharmacies nationwide or through mail order. You do not need insurance, and Tab works whether or not you have a health plan.
Tab is a membership, not insurance. Covered medications require a prescription from a licensed clinician.
Oxcarbazepine dosage and administration
Adults : Initiate with a dose of 600 mg/day, given twice a day • Adjunctive Therapy: Maximum increment of 600 mg/day at approximately weekly intervals. The recommended daily dose is 1,200 mg/day ( 2.1 ) • Conversion to Monotherapy: Withdrawal concomitant over 3 to 6 weeks; reach maximum dose of oxcarbazepine oral suspension in 2 to 4 weeks with increments of 600 mg/day at weekly intervals to a recommended daily dose of 2,400 mg/day ( 2.2 ) • Initiation of Monotherapy: Increments of 300 mg/day every third day to a dose of 1,200 mg/day ( 2.3 ) • Initiate at one-half the usual starting dose and increase slowly in patients with a creatinine clearance < 30 mL/min ( 2.7 ) Pediatrics : Initiation with 8 to 10 mg/kg/day, given twice a day. For patients aged 2 to < 4 years and under 20 kg, a starting dose of 16 to 20 mg/kg/day may be considered.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Your prescribing clinician decides the exact dose, form and schedule for you — this is not medical advice.
Oxcarbazepine side effects
The following serious adverse reactions are described below and elsewhere in the labeling: • Hyponatremia [see Warnings and Precautions (5.1) ] • Anaphylactic Reactions and Angioedema [see Warnings and Precautions (5.2) ] • Cross Hypersensitivity Reaction to Carbamazepine [see Warnings and Precautions (5.3) ] • Serious Dermatological Reactions [see Warnings and Precautions (5.4) ] • Suicidal Behavior and Ideation [see Warnings and Precautions (5.5) ] • Cognitive/Neuropsychiatric Adverse Reactions [see Warnings and Precautions (5.7) ] • Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)/Multi-Organ Hypersensitivity [see Warnings and Precautions (5.8) ] • Hematologic Events [see Warnings and Precautions (5.9) ] The most common (≥ 10% more than placebo for adjunctive or low dose for monotherapy) adverse reactions in adults and pediatrics were: dizziness, somnolence, diplopia, fatigue, nausea, vomiting, ataxia, abnormal vision, headache, nystagmus, tremor, and abnormal gait ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Novadoz Pharmaceuticals LLC at 1-855-668-2369 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. This is not a complete list. Report side effects to your clinician, and seek care for anything severe or unexpected.
Oxcarbazepine drug interactions
• Phenytoin: Increased phenytoin levels. Reduced dose of phenytoin may be required ( 7.1) • Carbamazepine, Phenytoin, and Phenobarbital: Decreased plasma levels of MHD (the active metabolite). Dose adjustments may be necessary ( 7.1 ) • Oral Contraceptive: Oxcarbazepine may decrease the effectiveness of hormonal contraceptives ( 7.3 ) 7.1 Effect of Oxcarbazepine on Other Drugs Phenytoin levels have been shown to increase with concomitant use of oxcarbazepine at doses greater than 1,200 mg/day [see Clinical Pharmacology (12.3) ]. Therefore, it is recommended that the plasma levels of phenytoin be monitored during the period of oxcarbazepine titration and dosage modification. A decrease in the dose of phenytoin may be required.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Tell your clinician and pharmacist about every medication, supplement and over-the-counter product you take.
Who should not take oxcarbazepine
Oxcarbazepine oral suspension is contraindicated in patients with a known hypersensitivity to oxcarbazepine or to any of its components, or to eslicarbazepine acetate [see Warnings and Precautions (5.2, 5.3 )]. Known hypersensitivity to oxcarbazepine or to any of its components, or to eslicarbazepine acetate ( 4, 5.2 )
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Whether this medication is appropriate for you is a clinical decision made by your prescribing clinician.
Common questions
Is oxcarbazepine covered at $0 with Tab?
Yes. Oxcarbazepine is on Tab's covered $0 generic list — every covered strength is $0 with an active membership, at participating pharmacies nationwide or by mail order.
Do I need insurance to get oxcarbazepine through Tab?
No. Tab is a membership, not insurance. Covered medications are $0 with an active membership whether or not you have a health plan.
How do I get an oxcarbazepine prescription with Tab?
Book a video visit with a licensed Tab clinician (unlimited visits are included with membership). If it's clinically appropriate, they send the prescription to your chosen participating pharmacy or by mail order.
How much does oxcarbazepine cost without insurance?
Without insurance, retail cash prices for oxcarbazepine vary by pharmacy, strength and quantity. Oxcarbazepine is on Tab's covered $0 generic list, so every covered strength is $0 with an active Tab membership at participating pharmacies nationwide or by mail order.
What is the cheapest way to get oxcarbazepine?
For medications on Tab's covered list, a Tab membership is the cheapest route: covered strengths of oxcarbazepine are $0 with an active membership, and unlimited video visits with a licensed clinician are included, so the visit that produces the prescription is covered too.
What is the usual dose of oxcarbazepine?
Adults : Initiate with a dose of 600 mg/day, given twice a day • Adjunctive Therapy: Maximum increment of 600 mg/day at approximately weekly intervals. The recommended daily dose is 1,200 mg/day ( 2.1 ) • Conversion to Monotherapy: Withdrawal concomitant over 3 to 6 weeks; (FDA-approved label, retrieved 2026-09-15. Your clinician sets your dose.)
What are the side effects of oxcarbazepine?
The following serious adverse reactions are described below and elsewhere in the labeling: • Hyponatremia [see Warnings and Precautions (5.1) ] • Anaphylactic Reactions and Angioedema [see Warnings and Precautions (5.2) ] • Cross Hypersensitivity Reaction to Carbamazepine [see Warnings and Precautions (5.3) ] • Serious Dermatological Reactions [see Warnings and Precautions (5.4) ] • Suicidal Behavior and Ideation [see Warnings and Precautions (5.5) ] • Cognitive/Neuropsychiatric Adverse Reactions [see Warnings and Precautions (5.7) ] • Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)/Multi-Organ Hypersensitivity [see Warnings and Precautions (5.8) ] • Hematologic Events [see Warnings and Precautions (5.9) ] The most common (≥ 10% more than placebo for adjunctive or low dose for monotherapy) adverse reactions in adults and pediatrics were: dizziness, somnolence, diplopia, fatigue, nausea, vomiting, ataxia, abnormal vision, headache, nystagmus, tremor, and abnormal gait ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Novadoz Pharmaceuticals LLC at 1-855-668-2369 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. (FDA-approved label, retrieved 2026-09-15.)
What interacts with oxcarbazepine?
• Phenytoin: Increased phenytoin levels. Reduced dose of phenytoin may be required ( 7.1) • Carbamazepine, Phenytoin, and Phenobarbital: Decreased plasma levels of MHD (the active metabolite). (FDA-approved label, retrieved 2026-09-15. Tell your clinician about every medication and supplement you take.)
Oxcarbazepine is $0 on the covered list
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