7. First-Generation Antihistamines
Examples:
- Diphenhydramine (Benadryl)
- Chlorpheniramine
- Hydroxyzine
- Doxylamine
What research suggests:
Long-term use is linked to cognitive decline due to brain effects.
What to do:
Switch to newer antihistamines like cetirizine, loratadine, or fexofenadine.
8. Statins (Controversial)
Used for: High cholesterol
What research shows:
Large clinical trials have found no significant cognitive harm. Benefits for heart health are well established.
What to do:
Do not stop statins without medical advice.
General Recommendations
General Recommendations
- Never stop medications abruptly.
- Request a medication review with your doctor or pharmacist.
- Use the lowest effective dose for the shortest time.
- Ask about deprescribing if you’ve been on medications long-term.
- Try non-drug approaches first when possible.
- Monitor cognitive changes and report concerns early.
Bottom Line
Some medications—especially strong anticholinergics, benzodiazepines, and certain sleep aids—are associated with increased dementia risk, particularly with long-term use.
However, these are associations, not proof of causation. For many people, the benefits of treatment outweigh the risks.
The best approach is simple: stay informed, review your medications regularly, and make decisions in partnership with your doctor.
