Drug

Memantine

As of the edition of 20 October 2026, Memantine is a small molecule: marketed, first approved in 2002 (EU); acts on GRIN1, GRIN2A and GRIN2B and 4 more.

Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.

The drug

Status
Marketed; latest approval 2020
Kind
Small molecule
Brand name
Namenda
First approved
15 May 2002 (EU)
Approvals on record
15 in 3 regions
Holder of the most recent approval
Laboratorios Alter S.A.; 5 holders in all
Withdrawn from market
6 September 2024 (in some regions)
Registered trials
167, 15 stopped early
Disease areas
Mental health; Nervous system; Cancer; Nutrition and metabolism; Chemically induced; Inherited and neonatal

US protection

No US approval on record.

With no US approval on record there are no listed US patents or exclusivities.

This is the US only.

Companies that need a new molecule because of this drug

5 company-target rows on route B because of this drug.

Companies on route B for this drug

In the product

5 company-target rows are on route B because of Memantine.

Targets

GeneProteinUniProt
GRIN2DGlutamate receptor ionotropic, NMDA 2DO15399
GRIN3BGlutamate receptor ionotropic, NMDA 3BO60391
GRIN1Glutamate receptor ionotropic, NMDA 1Q05586
GRIN2AGlutamate receptor ionotropic, NMDA 2AQ12879
GRIN2BGlutamate receptor ionotropic, NMDA 2BQ13224
GRIN2CGlutamate receptor ionotropic, NMDA 2CQ14957
GRIN3AGlutamate receptor ionotropic, NMDA 3AQ8TCU5

Registered trials

PhaseTrialsCompletedActiveStopped early
Phase not stated161001
Phase 1191234
Phase 25131133
Phase 3412464
Phase 4403403
All trials167

Who has held its approvals

CompanyRoleYears
AbbVieAcquired holder and Lead sponsor of trials1999 to now
LundbeckApplicant and Lead sponsor of trials2002 to now
Merz Pharma GmbH & Co. KGaALater holder and Lead sponsor of trials2002 to now
ActavisApplicant and Lead sponsor of trials2003 to now