Headlines such as “8 Drugs That Cause Serious Dementia” are misleading. There is no list of common medications that are proven to directly cause dementia in the way these posts often imply.
However, some medications can cause temporary confusion, memory problems, or impaired thinking, particularly in older adults. In some cases, long-term use of certain drugs has been associated with cognitive decline in research, but an association does not prove that the medication causes dementia.
Medication groups that may affect thinking include:
- Anticholinergic medications
- Found in some allergy, bladder, and older antidepressant medicines.
- Can cause confusion and memory problems, especially in older adults.
- Benzodiazepines
- Used for anxiety or insomnia.
- Can impair memory, increase drowsiness, and raise the risk of falls.
- Sedative sleep medications
- May cause next-day confusion or reduced alertness.
- Opioid pain medicines
- Can cause drowsiness and confusion, particularly at higher doses.
- Some anti-seizure medicines
- May affect concentration or memory in some people.
- Certain antipsychotic medications
- Can have cognitive side effects and are used cautiously in older adults.
- High-dose corticosteroids
- May cause mood changes, insomnia, or confusion in some people.
- Multiple sedating medications taken together
- Combining medicines that affect the brain can increase the risk of confusion and cognitive impairment.
Important points:
- Do not stop any prescribed medication without talking to your healthcare provider. Suddenly stopping some medicines can be dangerous.
- If you or a loved one develops new confusion, memory problems, or changes in thinking, ask a healthcare professional to review all prescription medicines, over-the-counter drugs, and supplements. Sometimes adjusting medications can improve symptoms.
Many causes of memory problems are treatable, including medication side effects, vitamin deficiencies, thyroid disorders, sleep problems, depression, and infections. A proper medical evaluation is the best way to determine the cause.
