Can Phenergan (promethazine) be used to treat persistent hiccups?

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From the Guidelines

Phenergan (promethazine) is not the preferred treatment for persistent hiccups due to its potential side effects and the availability of more effective alternatives. When considering treatment for persistent hiccups, it's crucial to weigh the potential benefits against the risks, especially in terms of morbidity, mortality, and quality of life. The provided evidence 1 discusses various medications and their effects but does not directly support the use of Phenergan for hiccups. Instead, it mentions chlorpromazine, a phenothiazine, as an option for treating intractable hiccups, highlighting the importance of selecting medications with known efficacy for specific conditions.

Key points to consider in treating persistent hiccups include:

  • The duration of hiccups: Hiccups lasting more than 48 hours may indicate an underlying condition that needs medical attention.
  • Potential side effects of medications: Promethazine can cause drowsiness, dry mouth, and extrapyramidal symptoms, among other side effects.
  • Availability of alternative treatments: Medications like baclofen, chlorpromazine, and metoclopramide are more commonly used for persistent hiccups due to their mechanisms of action that directly address the hiccup reflex.

Given the information and prioritizing patient outcomes in terms of morbidity, mortality, and quality of life, it is recommended to consult a healthcare provider for appropriate diagnosis and treatment of persistent hiccups, considering the use of medications with established efficacy for this condition. This approach ensures that any underlying medical issues are addressed and that the treatment chosen minimizes potential harm while maximizing the benefit to the patient.

From the Research

Treatment of Persistent Hiccups

  • Persistent hiccups can be a harbinger of serious medical pathology, and treatment should be directed at the underlying cause whenever possible 2.
  • There are no formal guidelines for the treatment of hiccups, and most methods proposed are based on case reports and anecdotal evidence 2.

Pharmacologic Interventions

  • Chlorpromazine is the only drug approved by the US Food and Drug Administration for the treatment of hiccups, but many other pharmacologic treatments have been proposed for intractable and persistent hiccups 3.
  • A systematic review identified 26 articles involving 10 pharmacologic treatment options, including amitriptyline, baclofen, gabapentin, haloperidol, metoclopramide, midazolam, nifedipine, nimodipine, orphenadrine, and valproic acid, which were found to be successful in treating hiccups 3.
  • Baclofen, gabapentin, and metoclopramide were the only agents that were studied in a prospective manner, and only baclofen and metoclopramide were studied in randomized controlled trials 3.

Use of Phenergan (Promethazine)

  • There is no direct evidence in the provided studies to support the use of Phenergan (promethazine) for the treatment of persistent hiccups.
  • However, promethazine is an antihistamine with antiemetic and sedative properties, which may be beneficial in treating hiccups, but its efficacy and safety for this indication are not well established 3, 4.

Other Treatment Options

  • Baclofen and gabapentin may be considered as first-line therapy for persistent and intractable hiccups, with metoclopramide and chlorpromazine in reserve 4.
  • A combination of baclofen and low-dose olanzapine therapy has been reported to be effective in treating intractable hiccups in a patient with a complicated medical history 5.
  • Baclofen has been shown to be effective in treating chronic hiccup in cancer patients 6.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Hiccups: A Non-Systematic Review.

Current pediatric reviews, 2020

Research

Systemic review: the pathogenesis and pharmacological treatment of hiccups.

Alimentary pharmacology & therapeutics, 2015

Research

Successful treatment of chronic hiccup with baclofen in cancer patients.

Medical oncology (Northwood, London, England), 2012

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.

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