It depends on the type of chemotherapy. My son was diagnosed with Acute Lymphoblastic Leukemia. His protocol called for several different chemo drugs to be administered intravenously. He also takes...
Some meds, like insulin, cannot be swallowed as it won't allow for absorption in the stomach. Giving meds "subQ" will ensure the medicine is absorbed into the system.
Well the terms you use are not of the same subgroup. What I mean is that there are several methods of injection or infusion, including:
Intradermal - between layers of the skin Subcutaneous - just...