How Is Chemotherapy Given? — All the Routes Explained

The route is a clinical decision, not a preference. If tablets are a valid option for your specific regimen, your oncologist will offer that. Where they are not — because the tablet and IV forms of the same drug behave differently, or only one form exists — switching is not safe. Ask your team whether both forms are available for your treatment and what the clinical reason for the chosen route is.

A PICC line is a thin tube inserted into a vein in the upper arm and threaded to a large vessel near the heart. A port is a small device placed under the skin in the chest that connects to the same place. Both are used when chemotherapy must run over many months, when the drug is harsh on small veins, or when blood tests are very frequent. For shorter regimens or drugs that tolerate a peripheral vein, a standard cannula on the day is sufficient. Your team will tell you in advance if a line or port is planned.

Most people feel nothing, or only a slight coolness as the fluid enters the vein. Tell your nurse immediately if you feel any burning, stinging, pain or swelling at the cannula site — this can mean chemotherapy is leaking into the surrounding tissue and the infusion must be stopped quickly. Some drugs cause a metallic taste or a brief sensation of warmth as they go in, which your nurse will usually warn you about beforehand.

Some oral chemotherapy is managed entirely at home after the initial consultation, with regular monitoring through blood tests at a clinic. A small number of patients carry a portable infusion pump that delivers chemotherapy slowly over several days. In India, all injected or infused chemotherapy must be given in a facility by trained staff with the equipment to manage reactions safely. Home administration of intravenous chemotherapy is not safe practice.

Do not take a double dose to compensate and do not stop without speaking to your team. What to do depends on when you realised and which medicine it is, so call your oncologist's team the same day. Some tablets must not be crushed or split — doing so can release the full dose at once and cause serious harm. Keep a record of every tablet you take and bring it to every appointment; your team uses that log for safety and to understand how your treatment is progressing.

Different drugs have different infusion times. Some need a pre-medication first to reduce the risk of a reaction, which adds time before the chemotherapy itself begins. Fluids given alongside the drug, or a slow flow rate required for a particular medicine, extend the session further. Blood result review and pharmacy preparation can also add time. Your nurse will give you an estimate at the start, though the actual length may vary.