Anticholinergic Medications to Avoid in Alzheimer's: Benadryl, Artane, and Others

Anticholinergic drugs block acetylcholine, a neurotransmitter critical for memory and cognition. In Alzheimer's disease, cholinergic neurons are already depleted; further blockade worsens confusion, memory loss, and functional decline.

Common Anticholinergics to Avoid (or use with extreme caution)

• Diphenhydramine (Benadryl) – antihistamine, sleep aid
• Trihexyphenidyl (Artane) – antiparkinsonian
• Orphenadrine (Norflex) – muscle relaxant
• Procyclidine (Kemadrin) – antiparkinsonian
• Others: Amitriptyline, oxybutynin, tolterodine, scopolamine, cyclobenzaprine, many OTC sleep/cold remedies.

Action: Review all medications (prescription + OTC) with the prescribing clinician. Safer alternatives often exist (e.g., second-gen antihistamines, non-anticholinergic bladder agents). Do not stop medications abruptly without medical guidance.