That headline is misleading. There is no established list of eight medications that simply “cause dementia.” However, some medications can affect memory and thinking, especially in older adults, and long-term use of certain drugs has been associated with a higher risk of cognitive problems in some studies. An association does not prove the medication causes dementia.
Medication groups that may affect cognition include:
- Anticholinergic drugs (used for some allergies, bladder problems, motion sickness, and other conditions)
- Benzodiazepines (used for anxiety or insomnia)
- Some sleep medications
- Certain opioid pain medicines
- Some medications used for seizures or other neurological conditions
These drugs can sometimes cause confusion, drowsiness, or memory problems, particularly in older adults or at higher doses.
Do not stop a prescribed medication on your own because of an online article. If you’re concerned that a medicine is affecting memory or thinking, talk with your healthcare provider or pharmacist. They can review your medications and, if appropriate, recommend safer alternatives or adjust the dose.
If someone develops new or rapidly worsening confusion, especially after starting a new medication, they should seek medical attention promptly, as this may be a reversible medication side effect or another acute medical issue rather than dementia.
