Topamax

NDC 50458-640 · Janssen Pharmaceuticals, Inc.

Generic nametopiramate

Dosage formTABLET, COATED

RouteORAL

Active ingredient(s)TOPIRAMATE

Strength50 mg/1

Pharmacologic classCytochrome P450 2C19 Inhibitors [MoA], Cytochrome P450 3A4 Inducers [MoA], Decreased Central Nervous System Disorganized Electrical Activity [PE]

Marketing categoryNDA

Packages

50458-640-65 — 60 TABLET, COATED in 1 BOTTLE (50458-640-65)

Related Codes

Same active ingredient

FDA lists these products with the same active ingredient.

50090-6827 — Topiramate, 50090-6828 — Topiramate, 50090-6895 — Topiramate, 50090-7067 — topiramate, 50090-7757 — topiramate, 50268-806 — topiramate, 50268-807 — topiramate, 50268-808 — topiramate, 50268-809 — topiramate, 50458-639 — topiramate, 50458-641 — topiramate, 50458-642 — topiramate, 50458-645 — topiramate, 50458-647 — topiramate, 51407-893 — Topiramate, 51407-894 — Topiramate, 51655-429 — topiramate, 51655-606 — Topiramate, 51655-608 — Topiramate, 51655-746 — topiramate, +289 more

From the FDA National Drug Code Directory, retrieved August 24, 2026. Product listings are submitted by labelers; FDA does not verify them.

Read from: FDA National Drug Code Directory, product.txt and package.txt (accessdata.fda.gov/cder/ndctext.zip) — Snapshot retrieved 2026-08-24, loaded 2026-08-24; CMS Medicare Part B Drug Average Sales Price (ASP) Pricing Files (cms.gov/medicare/payment/part-b-drugs/asp-pricing-files) -- the NDC-HCPCS crosswalk and Part B payment limit files — 2026 Q3 (July 2026 release). All data sources · How to read the labels