1. Anticholinergic Medications
Examples include:
- Diphenhydramine
- Oxybutynin
- Amitriptyline
These medications block acetylcholine, a brain chemical essential for learning and memory.
A large study published in JAMA Internal Medicine found that heavy long-term use of strong anticholinergic drugs was associated with a higher risk of dementia.
However, the relationship remains complex and not fully proven.
2. Proton Pump Inhibitors (PPIs)
Common examples include:
- Omeprazole
- Pantoprazole
These medications treat acid reflux and GERD.
Some studies suggested a possible link between long-term PPI use and dementia. Researchers speculate this could relate to vitamin B12 deficiency or magnesium imbalance.
However, no clinical trials have proven that PPIs cause dementia.
3. Benzodiazepines
Examples include:
- Alprazolam
- Diazepam
- Lorazepam
These drugs treat anxiety, insomnia, and seizures.
They can cause:
- Drowsiness
- Confusion
- Slowed thinking
Because of these risks, long-term use in older adults is generally discouraged.
4. Non-Benzodiazepine Sleep Aids
Common examples:
- Zolpidem
- Eszopiclone
These medications may cause:
- Next-day drowsiness
- Memory gaps
- Confusion
