Headlines like “8 drugs that cause serious dementia” are often misleading. No commonly prescribed medication has been proven to directly cause dementia in everyone who takes it. However, some medicines can cause temporary confusion or memory problems, especially in older adults, and some have been associated with a higher risk of cognitive decline in observational studies.
Medication groups that may affect thinking or memory include:
- Anticholinergic medications
- Found in some allergy, bladder, motion sickness, and older antidepressant medicines.
- Can cause confusion, especially in older adults.
- Benzodiazepines
- Used for anxiety, panic disorders, and insomnia.
- Can impair memory and increase the risk of falls, particularly with long-term use.
- Sedative sleep medications
- May cause next-day drowsiness, confusion, or memory problems.
- Opioid pain medications
- Can slow thinking and cause confusion, especially at higher doses.
- Some antiseizure medications
- Certain drugs used for seizures or nerve pain may affect concentration or memory.
- Some older antihistamines
- First-generation antihistamines can have anticholinergic effects that impair alertness and memory.
- Certain medications for overactive bladder
- Some work by blocking acetylcholine and may contribute to cognitive side effects.
- Corticosteroids
- High doses can sometimes cause mood changes, confusion, or memory difficulties.
What to do if you’re concerned
- Don’t stop a prescribed medication on your own. Suddenly stopping some medicines can be dangerous.
- Ask your healthcare professional or pharmacist to review all of your medications, especially if you’re taking several at once.
- Report new memory problems, confusion, or changes in thinking promptly.
If you tell me the names of the medications you’re taking, I can explain whether any are known to have cognitive side effects and what questions you might ask your healthcare provider.
