You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: December 12, 2025

Details for New Drug Application (NDA): 022250


✉ Email this page to a colleague

« Back to Dashboard


NDA 022250 describes AMPYRA, which is a drug marketed by Merz and is included in one NDA. It is available from one supplier. Additional details are available on the AMPYRA profile page.

The generic ingredient in AMPYRA is dalfampridine. There are ten drug master file entries for this compound. Ten suppliers are listed for this compound. Additional details are available on the dalfampridine profile page.
Summary for 022250
Tradename:AMPYRA
Applicant:Merz
Ingredient:dalfampridine
Patents:0
Pharmacology for NDA: 022250
Mechanism of ActionPotassium Channel Antagonists
Suppliers and Packaging for NDA: 022250
Tradename Generic Name Dosage NDA Application Type Supplier National Drug Code Package Code Package
AMPYRA dalfampridine TABLET, EXTENDED RELEASE;ORAL 022250 NDA Merz Pharmaceuticals, LLC 0259-5010 0259-5010-60 60 TABLET, FILM COATED, EXTENDED RELEASE in 1 BOTTLE (0259-5010-60)
AMPYRA dalfampridine TABLET, EXTENDED RELEASE;ORAL 022250 NDA Merz Pharmaceuticals, LLC 10144-427 10144-427-60 60 TABLET, FILM COATED, EXTENDED RELEASE in 1 BOTTLE (10144-427-60)

Profile for product number 001

Active Rx/OTC/Discontinued:RXDosage:TABLET, EXTENDED RELEASE;ORALStrength10MG
Approval Date:Jan 22, 2010TE:ABRLD:Yes

Expired US Patents for NDA 022250

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Merz AMPYRA dalfampridine TABLET, EXTENDED RELEASE;ORAL 022250-001 Jan 22, 2010 ⤷  Get Started Free ⤷  Get Started Free
Merz AMPYRA dalfampridine TABLET, EXTENDED RELEASE;ORAL 022250-001 Jan 22, 2010 ⤷  Get Started Free ⤷  Get Started Free
Merz AMPYRA dalfampridine TABLET, EXTENDED RELEASE;ORAL 022250-001 Jan 22, 2010 ⤷  Get Started Free ⤷  Get Started Free
Merz AMPYRA dalfampridine TABLET, EXTENDED RELEASE;ORAL 022250-001 Jan 22, 2010 ⤷  Get Started Free ⤷  Get Started Free
Merz AMPYRA dalfampridine TABLET, EXTENDED RELEASE;ORAL 022250-001 Jan 22, 2010 ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

Complete Access Available with Subscription

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.