Infusion therapy is needed when a patient cannot take a drug orally.
you’re able to get infusion therapy in a medical setting or at home.
Insulin shots are an example of home infusion therapy.

Illustration by Tara Anand for Verywell Health
This article explains the uses, benefits, and potential side effects of different kinds of infusion therapy.
Epidurals block pain signals from being sent from the spine to the brain.
Epidurals might also help relieve acute pain.
Intramuscular
Intramuscular infusion therapy involves medication inserted into muscle tissue.
Subcutaneous injection sites include the upper arms, stomach, upper thighs, lower back, and buttocks.
This method is mainly used in emergencies where rapid vein access is difficult or impossible.
Intraosseous infusion would be a quick option then to administer fluids or medications.
Intraosseous infusions are typically used only temporarily (less than 24 hours) until IV access is possible.
What is the difference between a transfusion and an infusion?
Summary
Infusion therapy involves a medication or nutrient inserted directly into a person’s system.
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