Average Out-of-Pocket Cost for Generic Topiramate
The average out-of-pocket cost for generic topiramate ranges from approximately $3 to $179 per 30-day supply, depending on the formulation and dose.
Cost Breakdown by Formulation
Topiramate Monotherapy
- National Average Drug Acquisition Cost: $3 for 37.5 mg dose 1, 2
- Average Wholesale Price: $5-$56 for 37.5 mg dose 3
- This represents the generic topiramate used for epilepsy treatment
Phentermine/Topiramate Extended Release Combination (Qsymia)
- National Average Drug Acquisition Cost: $178-$179 for 7.5 mg/46 mg dose 3, 1, 4, 2
- Average Wholesale Price: $223 for 7.5 mg/46 mg dose 3, 1, 4, 2
- This is the FDA-approved combination product for obesity management
Important Context
Generic topiramate monotherapy is remarkably inexpensive at approximately $3 per month through standard pharmacy channels 1, 2. This makes it one of the most affordable antiepileptic and weight management medications available.
However, the branded combination product (phentermine/topiramate ER) costs significantly more at $178-$179 per month for the National Average Drug Acquisition Cost 4, 2. The wholesale price is even higher at $223 per month 4.
Key Pricing Considerations:
- Direct-to-consumer pharmacies may offer additional savings, though availability varies 5
- Insurance coverage substantially impacts out-of-pocket costs, particularly for the combination product used in obesity management
- Dose-dependent pricing: Higher doses (15 mg/92 mg) of the combination product maintain similar pricing around $178-$179 3, 1
Clinical Relevance:
The dramatic price difference between generic topiramate monotherapy ($3/month) and the combination product ($178/month) is clinically significant when considering treatment options for obesity management. While the combination product demonstrates superior weight loss efficacy (9.8% weight loss at 7.5/46 mg dose vs baseline) 3, 1, the cost differential may influence treatment decisions, particularly for patients with limited insurance coverage or high deductibles.
For epilepsy treatment, generic topiramate remains highly cost-effective at approximately $3 per 30-day supply 1, 2.