Oxcarbazepine Metabolite (10-Hydroxycarbazepine)
The active metabolite that actually controls seizures on oxcarbazepine, and the number used to keep the dose in range.
Consider this test if:
- Starting oxcarbazepine or adjusting the dose and confirming the level lands in range
- Breakthrough seizures despite taking the medication as prescribed
- Symptoms of toxicity such as dizziness, drowsiness, double vision, unsteadiness, or nausea
- Adding or stopping another drug, or a change in pregnancy or kidney function that affects clearance
- Checking adherence or steady-state levels during routine therapeutic monitoring
- HSA/FSA eligible
- Results delivered to your dashboard · Reviewed by a real clinician
- Drawn at a CLIA/CAP-accredited lab near you ·
Pre-test considerations
Fasting is not required. Timing relative to your dose is what matters: most monitoring uses a trough level, drawn just before the next dose, and keeping the draw at a consistent time relative to dosing makes results comparable across tests. Note your current dose and the time of your last dose for accurate interpretation.
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What this test is for
Oxcarbazepine (Trileptal) is an anticonvulsant used for partial and generalized tonic-clonic seizures, and after a dose it is rapidly converted to 10-hydroxycarbazepine, the metabolite that does the work. This test measures that active metabolite in serum, because it has a much longer half-life than the parent drug and is what blood-level monitoring is based on. Effective seizure control is generally seen with levels between roughly 15 and 35 mcg/mL, while levels above 35 mcg/mL are associated with toxic effects such as dizziness, drowsiness, double vision, unsteadiness, and nausea. Monitoring is most useful when adjusting the dose, when seizures break through, when toxicity is suspected, or when another medication, pregnancy, or kidney function changes how the drug is cleared. The metabolite is excreted almost entirely by the kidneys, so falling clearance can push levels up.
- Specimen
- Serum or plasma
- Measures
- Mass concentration
What you'll learn
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Insights that connect the dots. A clinician reads your whole picture, not one result in isolation, connecting family history, past results, and lifestyle into clear next steps.
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Your personalized action plan. Nutrition, supplements, and training in one clinician-reviewed protocol, updated as your results change.
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Track your trends. Upload results from any lab and see each biomarker trend over time, so you know what is working.
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Never miss a recheck. Mito tells you what is worth retesting and when, then reminds you so nothing slips.
What to expect
- 1 Book instantly
Click, book, done. Choose a convenient lab location near you. Transparent, up-front pricing.
- 2 Quick lab visit
Testing to fit your busy schedule, usually 15 minutes or less. Walk-in and appointments available.
- 3 Fast, dashboard-delivered results
Your results post straight to your dashboard as soon as the lab completes them.
- 4 Expert guidance
Included with Mito membership. A clinician reviews your results and your personalized action plan follows, with clear next steps.
Everything your health needs,
in one membership
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Every test at our cost
Members pay our cost on every test, with lab fees passed straight through. The full receipt is itemized, never padded.
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Continuous tracking, all in one place
Upload past labs and watch your trends over time. Every marker and visit lives in one longitudinal record, so all your care stays together.
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Year-round clinician support
Text anytime and get clinician-reviewed answers. When you want to go deeper, 1:1 consultations are available at affordable rates.
All for $9/month
Order any test or consult without joining. For $9/month, members unlock member prices, trend tracking, and year-round clinician guidance.
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Frequently asked questions
View all FAQsHow does pricing work?
Every test shows the member price next to the standard non-member price, so you can see what membership saves you. The member price is our cost, covering the lab and what it takes to run the service. It is never a profit on the test itself. Mito makes its money on the $9 membership, not on marking up your tests. Membership is $9 per month, and any applicable lab order or draw fee is itemized before you pay.
Where do I get tested?
Choose an available partner lab at checkout. If your cart contains multiple blood tests, Mito helps consolidate the eligible tests at one lab when possible. At-home kits and scans follow the collection or appointment process shown on their product page.
Is this eligible for HSA/FSA?
Yes. Eligible tests can be paid for with an HSA or FSA card at checkout.
When will I get my results?
Your results appear in your Mito dashboard after the laboratory completes processing. A clinician then reviews them before your analysis and personalized action plan are finalized. Timing varies by test, and specialty assays and at-home kits may take longer.
Do I need a physician's order?
No. Mito provides the laboratory order when one is required, so you do not need to arrange a separate physician visit before purchasing.
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