Cited by 61Intramuscular injections and effectsAdvanced Drug Delivery SystemsAntibiotics Pharmacokinetics and Efficacy

A narrative review of the success of intramuscular gluteal injections and its impact in psychiatry

Open access
Soliman, Erfan, Ranjan, Sarujan, Xu, Tianyou, Gee, Carol, Harker, Aidan, Barrera, Alvaro, Geddes, John·2018·Bio-Design and Manufacturing

Abstract

There are 12 billion injections given worldwide every year. For many injections, the intramuscular route is favoured over the subcutaneous route due to the increased vascularity of muscle tissue and the corresponding increase in the bioavailability of drugs when administered intramuscularly. This paper is a review of the variables that affect the success of intramuscular injections and the implications that these success rates have in psychiatry and general medicine. Studies have shown that the success rates of intended intramuscular injections vary between 32 and 52%, with the rest potentially resulting in inadvertent subcutaneous drug deposition. These rates are found to be even lower for certain at-risk populations, such as obese patients and those on antipsychotic medications. The variables associated with an increased risk of injection failure include female sex, obesity, site of injection, and subcutaneous fat depth. New guidelines and methods are needed in order to address this challenge and ensure that patients receive optimum care. Looking forward, the best way to improve the delivery of intramuscular injections worldwide is to develop uniform algorithms or innovative medical devices to confirm or guarantee successful delivery at the bedside.

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Crossref · 10.1007/s42242-018-0018-x

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  • Absorption from the injection site can be influenced by properties of the drug, including water solubility and the delivery vehicle, and patient factors such as body weight, subcutaneous fat, and vascularity of the site of injection.

    “Absorption from the injection site can be influenced by properties of the drug, including water solubility and the delivery vehicle, and patient factors such as body weight, subcutaneous fat, and vascularity of the site of injection [25, 34, 35].”

    From Pharmacokinetic Characteristics of Long-Acting Injectable Antipsychotics for Schizophrenia: An Overview (2021) · cites this paper as [34]

    The Introduction links tissue vascularity to drug absorption, and 'Consequences of unsuccessful injections' says subcutaneous deposition can slow absorption. 'Subcutaneous fat, BMI, and gender' discusses weight, fat thickness, and low-solubility oil depots that release drug over time. The paper does not specifically identify water solubility as a factor. (LLM, conf=0.83)

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Authors
Soliman, E., Ranjan, S., Xu, T., Gee, C., Harker, A., Barrera, A., & Geddes, J.
Affiliations
  • University of Oxford (GB)
  • Oxford Health NHS Foundation Trust (GB)
  • Warneford Hospital (GB)
Corresponding author
  • Soliman, Erfan
  • Ranjan, Sarujan
  • Xu, Tianyou
Venue
Bio-Design and Manufacturing
Published
2018-07-27
Volume
1
Issue
3
Pages
161-170
ISSN
  • 2096-5524 (ISSN-L)
  • 2522-8552
OpenAlex
W2883939874
Cited by
61
References
51
Citations by year
2026: 3 · 2025: 9 · 2024: 8 · 2023: 10 · 2022: 14 · 2021: 12 · 2020: 5
FWCI
1.06
Type
journal article
Language
en
Open access
Locations
  • Bio-Design and Manufacturing (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
University of Oxford
Topics
  • Health Sciences › Medicine › Emergency Medicine › Intramuscular injections and effects
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
  • Health Sciences › Medicine › Pharmacology › Antibiotics Pharmacokinetics and Efficacy
Keywords
intramuscular injection, injection success rate, gluteal muscles, subcutaneous fat thickness, obesity, antipsychotic drugs, injection site, medical devices, drug bioavailability, psychiatric patients

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