Some older antidepressants affect acetylcholine, a chemical critical for memory and learning.
Older allergy medications often cause drowsiness and mental fog because they easily cross into the brain.
Strong pain medications can slow brain function and interfere with memory formation, especially at higher doses.

Often prescribed for short-term pain, they can cause sedation and confusion when used longer than recommended.
Some anticonvulsants may reduce alertness and slow cognitive processing.
Continue reading…