A 78-year-old client with painful diabetic neuropathy, history of glaucoma, prostatic hypertrophy, and prior fall is sent to the clinic with a new order for amitriptyline 50 mg PO at bedtime for neuropathic pain. Which is the most appropriate initial nursing action?

Tricyclic antidepressants (TCAs) include tertiary amines (amitriptyline, imipramine, doxepin) and secondary amines (nortriptyline, desipramine). Tertiary amines have stronger anticholinergic, sedative, and cardiac effects and are listed by the American Geriatrics Society Beers Criteria as potentially inappropriate in adults 65 and older. Adverse effects relevant in this client: (1) anticholinergic — urinary retention (worsens BPH), increased intraocular pressure (worsens narrow-angle glaucoma; closed-angle is the absolute contraindication), dry mouth, constipation, blurred vision, cognitive impairment, delirium; (2) cardiovascular — orthostatic hypotension and falls, prolonged QT and risk of arrhythmia especially in overdose, conduction delay; (3) sedation; (4) lowered seizure threshold; (5) weight gain; (6) overdose lethality due to cardiotoxicity (Na channel blockade — wide QRS, hypotension, seizures); (7) suicidal ideation FDA black box for under age 25 antidepressants. Safer choices for neuropathic pain in older adults: duloxetine (SNRI), pregabalin or gabapentin, topical lidocaine or capsaicin. If TCA is required, nortriptyline is preferred at low starting dose with baseline ECG and cautious titration. Holding the dose and contacting the prescriber is the standard advocacy and safety action.

Tertiary TCAs are Beers Criteria potentially inappropriate in older adults — anticholinergic, orthostatic, QT, sedation, fall, and cognitive harms. Hold and advocate for a safer alternative.