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Legality · Memantine

Is Memantine legal in Portugal?

Also known as: namenda

Confirmed against a primary sourceVerified September 21, 2026
Legal status
Memantine is an authorised prescription medicine (medicamento sujeito a receita medica), not a controlled substance: Infarmed granted it an Autorizacao de Introducao no Mercado and it is not listed in the Decreto-Lei 15/93 narcotics/psychotropics tables.
Consequences if caught
No controlled-drug penalty attaches to memantine; unauthorised supply of a prescription medicine is a medicines-law matter, not a trafficking offence.
If prescribed or medical
Prescribed for moderately-severe to severe Alzheimer's dementia.
Documentation
Ebixa (memantine, Lundbeck) and generics are registered in the Infarmed Infomed database; carried lawfully with a prescription.
Primary sources
  • infarmed.pt
  • The tables of Decreto-Lei n.º 15/93 are what this cell reads against, and the sibling cells of this table establish their version from the Infarmed compilation, whose own footnotes carry amendments up to Lei n.º 77/2014, de 11 de novembro. As those tables stand after Lei n.º 77/2014, no later amending instrument was available to those cells, and the new psychoactive substances list is separately established there as at 8 September 2022, the date the republished annex to Portaria n.º 232/2022 took effect. That does not rule out a later amendment made or commenced since.

Court records

We have not yet assessed whether court records are publicly available for this jurisdiction.

Memantine in related jurisdictions

Other substances confirmed in Portugal

Same substance, other countries