Is promethazine (Phenergan) listed on the Beers criteria for potentially inappropriate medications in older adults?

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Last updated: May 7, 2026 • View editorial policy

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Yes, promethazine (Phenergan) is on the Beers List

Promethazine is explicitly listed as a potentially inappropriate medication (PIM) in the American Geriatrics Society Beers Criteria® and should generally be avoided in older adults due to its strong anticholinergic properties and associated risks. 1

Why Promethazine is Problematic in Older Adults

Promethazine appears on the Beers Criteria as one of the most frequently prescribed inappropriate medications in elderly populations. Research consistently identifies it among the top PIMs used in older adults 2, 3, 4.

Key Risks in Elderly Patients:

  • Strong anticholinergic effects leading to:

    • Confusion and delirium
    • Increased fall risk
    • Cognitive impairment
    • Urinary retention
    • Constipation
  • CNS depression causing:

    • Excessive sedation
    • Impaired mental and physical abilities
    • Increased risk when combined with other sedating medications 5
  • Respiratory depression, particularly dangerous in:

    • Patients with COPD or sleep apnea
    • Those taking concurrent respiratory depressants 5

Clinical Evidence

Studies demonstrate that promethazine use is associated with increased risk of unplanned hospitalizations in elderly patients. One large study found patients taking promethazine were at particularly high risk for hospitalization compared to other PIMs 6.

In nursing home settings, promethazine accounted for 46.9% of all PIMs prescribed, and providers without geriatric training were significantly more likely to prescribe it (odds ratio 6.25) 4.

Common Pitfall to Avoid

Do not assume promethazine is safe simply because it's available over-the-counter or has been used for decades. The 2019 Beers Criteria explicitly recommend avoiding it in older adults regardless of indication 1. The unfavorable risk-benefit profile in elderly patients outweighs any perceived benefits for nausea, allergies, or sleep.

What to Use Instead

For the conditions promethazine is commonly prescribed:

  • Nausea/vomiting: Ondansetron, metoclopramide (with caution), or prochlorperazine
  • Allergies: Second-generation antihistamines (cetirizine, loratadine) with minimal anticholinergic effects
  • Sleep: Cognitive-behavioral therapy for insomnia (CBT-I) as first-line; avoid sedating antihistamines 7, 8

The evidence is clear: promethazine should be avoided in patients 65 years and older whenever possible, with safer alternatives selected based on the specific indication.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.