Can cyproheptadine be used to stimulate appetite in a 78-year-old gentleman?

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From the Guidelines

Cyproheptadine should be used with caution to stimulate appetite in a 78-year-old gentleman due to its potential anticholinergic side effects, which can be particularly problematic in the elderly population 1. When considering the use of cyproheptadine for appetite stimulation in this patient, it is essential to weigh the potential benefits against the risks. The medication's anticholinergic properties can lead to cognitive decline, especially in older adults, as noted in the study by the aaaai mast cell disorders committee work group report 1.

Key considerations for the use of cyproheptadine in this context include:

  • Starting with a lower dose, such as 2 mg once or twice daily, and gradually increasing as tolerated to minimize side effects.
  • Monitoring for anticholinergic side effects like confusion, urinary retention, dry mouth, blurred vision, and constipation, which can be more pronounced in older adults.
  • Being aware of the potential for sedation, which can increase the risk of falls in the elderly.
  • Investigating the underlying cause of decreased appetite before initiating treatment.
  • Evaluating potential drug interactions with other medications the patient may be taking.

Given the potential risks, it is crucial to closely monitor the patient's response to cyproheptadine and adjust the treatment plan as necessary to prioritize the patient's safety and well-being 1. Regular follow-up appointments are essential to monitor weight gain, side effects, and overall response to the medication, ensuring that the benefits of treatment outweigh the risks.

From the Research

Use of Cyproheptadine to Stimulate Appetite

  • Cyproheptadine is an antihistamine and antiserotonergic agent that has been used as an appetite stimulant in various populations, including those with cystic fibrosis and poor appetite 2, 3, 4.
  • A study published in 2021 found that cyproheptadine was effective in improving appetite in adults with poor appetite, with a significant increase in appetite score and weight gain compared to placebo 3.
  • Another study published in 2022 found that appetite stimulants, including cyproheptadine, may produce a larger increase in weight and improve appetite in people with cystic fibrosis, although the evidence was of low certainty due to the small number of participants and incomplete outcome reporting 2.
  • However, there is limited evidence on the use of cyproheptadine in older adults, and further randomized studies are needed to determine its efficacy and safety in this population 3.
  • Other appetite stimulants, such as megestrol acetate and dronabinol, have also been studied in various populations, including those with cystic fibrosis and hospitalized adults, but the evidence on their efficacy is limited and inconsistent 5, 4, 6.

Considerations for Use in a 78-Year-Old Gentleman

  • When considering the use of cyproheptadine to stimulate appetite in a 78-year-old gentleman, it is essential to weigh the potential benefits against the potential risks and side effects, particularly in older adults who may be more susceptible to adverse effects 5, 3.
  • The dosage and duration of therapy should be carefully considered, and the patient should be closely monitored for any adverse effects, such as somnolence, which is a common side effect of cyproheptadine 3.
  • Additionally, the patient's overall health status, medical history, and current medications should be taken into account when deciding whether to use cyproheptadine or other appetite stimulants 5, 6.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Appetite stimulants for people with cystic fibrosis.

The Cochrane database of systematic reviews, 2022

Research

Appetite stimulants in cystic fibrosis: a systematic review.

Journal of human nutrition and dietetics : the official journal of the British Dietetic Association, 2007

Research

Orexigenic and anabolic agents.

Clinics in geriatric medicine, 2002

Research

A review of the efficacy of appetite stimulating medications in hospitalized adults.

Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition, 2023

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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