How to Save Money on Oxtellar XR in 2026: Coupons, Discounts, and Patient Assistance

Oxtellar XR's retail price can reach $1,286 per month for a 30-day supply of the most common strength — and unlike many medications, there is limited generic availability. But patients have more options than they might realize. Between manufacturer savings programs, prescription discount cards, patient assistance, and insurance tools, most people can significantly reduce what they pay for Oxtellar XR.

How Much Does Oxtellar XR Cost Without Insurance?

Without insurance or a discount program, Oxtellar XR is one of the more expensive anticonvulsants on the market:

• Average retail price: Approximately $512–$1,286 per month depending on strength and quantity
• With GoodRx coupon: As low as $378.61 for oxcarbazepine ER (71% off retail)
• With SingleCare coupon: As low as $233.88 per fill
• Walmart cash price: Approximately $300 for 30 tablets of Oxtellar XR 300 mg

Prices vary significantly by pharmacy and strength. Always compare before filling.

Option 1: Supernus Co-Pay Savings Card

Supernus Pharmaceuticals offers a co-pay savings card for commercially insured patients. Here's how it works:

• Eligible commercially insured patients may receive savings of up to $250 per prescription fill
• Valid for up to 12 prescription fills
• NOT valid for Medicaid, Medicare, or other federal/state program participants
• Activate online at oxtellarxr.com or by texting SUP to 37500
• Also available to cash-paying patients (not just insured patients)

For questions, call Supernus Support toll-free at 1-866-398-0833 (Monday–Friday, 8:30 AM–5:30 PM ET).

Option 2: Supernus Patient Assistance Program (No-Cost Medication)

For patients who are uninsured or underinsured and cannot afford Oxtellar XR, Supernus offers the Supernus Support Patient Assistance Program, which provides Oxtellar XR at no cost to qualifying patients. To apply:

1. Download and complete the Supernus Support enrollment form with your healthcare provider
2. Have your provider fax the completed form to 1-855-998-1515
3. A Supernus Support representative will conduct a benefits investigation and determine eligibility
4. If eligible, you'll be connected with a designated pharmacy to receive regular Oxtellar XR fills

Call 1-866-398-0833 to start the process or get answers to eligibility questions.

Option 3: Prescription Discount Cards (GoodRx, SingleCare, RxSaver)

Prescription discount cards can reduce Oxtellar XR costs even without insurance. Key options:

• GoodRx: Shows prices at local pharmacies; oxcarbazepine ER prices from $378+ with GoodRx coupon
• SingleCare: Reports best price of $233.88; prices vary by pharmacy and location
• Rx.com: Reports savings of up to 80% at 60,000+ participating pharmacies

Important: Discount cards cannot be used simultaneously with insurance. Compare the discount card price versus your insurance copay to decide which is better value for your situation.

Option 4: Insurance Coverage and Tier Appeals

Oxtellar XR is covered by most commercial insurance and Medicare Part D plans, though it may require prior authorization. If your plan places Oxtellar XR on a higher tier with a high copay:

• Ask your doctor to submit a tier exception appeal demonstrating medical necessity of the brand extended-release formulation
• Document any side effects or adherence problems with generic IR alternatives
• Request 90-day supplies through mail-order to reduce per-dose cost

Option 5: Consider Generic Oxcarbazepine IR to Reduce Costs

If cost is the primary barrier, discuss with your doctor whether generic oxcarbazepine immediate-release tablets (Trileptal equivalent) would be medically appropriate. Generic IR oxcarbazepine costs as little as $15–$60/month with a discount card — a fraction of Oxtellar XR's cost. See our guide to Oxtellar XR alternatives for more details.

The Bottom Line on Oxtellar XR Costs

Oxtellar XR doesn't have to cost thousands per year out of pocket. The Supernus co-pay savings card, patient assistance program, prescription discount cards, and insurance appeals can all reduce what you pay. Once you've secured savings on your prescription, use medfinder to find the pharmacy near you with the best combination of price and availability.