Is cannabis an effective treatment for Alzheimer's disease symptoms?

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Last updated: June 9, 2025View editorial policy

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From the Research

Cannabis should not be considered a standard treatment for Alzheimer's disease symptoms due to limited and mixed evidence, and its use should only be explored under close medical supervision. The most recent and highest quality study, published in 2024 1, suggests that cannabinoids might have a positive impact on amyloid formation in Alzheimer's disease and on behavioral and psychological symptoms of dementia (BPSD). However, the study also notes that older studies using low-dose oral synthetic THC showed no positive results, while more recent studies using THC/CBD-based oral medication at higher doses show promising results. Some key points to consider when evaluating the use of cannabis for Alzheimer's disease symptoms include:

  • The potential benefits of cannabinoids in reducing inflammation and amyloid buildup in the brain, which are hallmarks of Alzheimer's disease 2
  • The possible therapeutic effects of cannabinoids on agitation, aggression, and sleep disturbances in Alzheimer's patients 3, 4
  • The importance of carefully monitoring for benefits and side effects, as cannabis use can come with potential risks, including cognitive impairment, dizziness, confusion, and drug interactions 1, 5
  • The need for further research to establish the clinical efficiency and optimal dosing of cannabinoids for Alzheimer's disease symptoms, as well as their potential interactions with other medications 1.

References

Research

Cannabinoids for Agitation in Alzheimer's Disease.

The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry, 2021

Research

Use of Cannabis for Agitation in Patients With Dementia.

The Senior care pharmacist, 2020

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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