11. Corticosteroids

Long-term or high-dose use can affect mood, memory, and concentration.

12. Chemotherapy Drugs

Often referred to as “chemo brain,” these medications can cause temporary memory and attention problems.

13. Anticholinergic Drugs

This broad category blocks acetylcholine, directly interfering with memory and learning processes.

14. Parkinson’s Disease Medications

Some treatments can cause confusion or hallucinations, especially in older adults.

15. Anti-Nausea Medications

Certain drugs used for motion sickness or nausea can cause drowsiness and