Alert: 8 Types of Medications That May Affect Memory and Thinking
Some medications can cause confusion, drowsiness, or short-term memory problems, especially in older adults. This does not mean they directly “cause dementia” in every person. Dementia is a complex condition with many possible causes, and medication effects are often reversible when the responsible medicine is identified and adjusted with a healthcare professional.
Never stop a prescribed medication suddenly without medical advice.
1. Anticholinergic medications
These medicines block acetylcholine, a brain chemical involved in memory and learning.
Examples may include some:
- Older antihistamines
- Bladder control medicines
- Certain medications for dizziness or nausea
Possible effects:
- Confusion
- Dry mouth
- Constipation
- Memory difficulties
2. Benzodiazepines (some anxiety and sleep medicines)
These medications can cause:
- Sleepiness
- Slower thinking
- Problems with attention and balance
Long-term use, especially in older adults, is often reviewed carefully by healthcare professionals.
3. Some sleep medications
Certain prescription sleep aids may affect:
- Alertness
- Coordination
- Memory formation
Older adults may be more sensitive to these effects.
4. Opioid pain medications
Opioids can sometimes cause:
- Drowsiness
- Confusion
- Reduced alertness
Risk may increase when combined with alcohol or other sedating medicines.
5. Some medications for bladder problems
Certain bladder-control drugs have anticholinergic effects that may contribute to confusion or cognitive side effects in some older adults.
6. Some medications used for anxiety, depression, or mood disorders
Some psychiatric medicines can affect alertness or concentration, particularly when starting treatment or changing doses.
A healthcare professional can help balance benefits and risks.
7. Certain seizure medications
Some anticonvulsants may cause:
- Sleepiness
- Slower thinking
- Difficulty concentrating
8. Some medications that lower blood pressure or affect the nervous system
Medicines that cause:
- Low blood pressure
- Dizziness
- Excess sedation
may increase the risk of confusion or falls in some people
