At what angle should intramuscular injections be administered?

Intramuscular injections should be administered at a 90-degree angle to ensure that the medication is delivered deep into the muscle tissue. This angle allows for proper penetration of the needle through the skin and subcutaneous tissue directly into the muscle, which is essential for effective absorption of the medication. Administering at this angle minimizes the risk of injecting the medication into fatty tissue or, in some cases, into blood vessels, which can lead to complications or ineffective treatment.

Other angles, such as 45, 60, or 75 degrees, are typically used for subcutaneous injections or specific situations where a different approach is warranted. However, for intramuscular injections, the standard practice is to use the 90-degree angle to optimize the medication's therapeutic effect and ensure patient safety.