Skip to main content

Injection Site Reaction

Meaning

A localized adverse effect that occurs at the anatomical location where a medication, such as a hormone or peptide, has been administered via injection into the subcutaneous or intramuscular space. These reactions are typically characterized by symptoms like erythema, pain, swelling, pruritus, or induration, and are generally transient and mild to moderate in their severity. They represent a common clinical consideration in the management of patients receiving injectable drug delivery.