What chemotherapy is – and is not

Chemotherapy uses medicines that travel through the bloodstream to kill or control rapidly dividing cancer cells. These medicines may be given alone or along with surgery, radiation, targeted therapy or immunotherapy, depending on your cancer and stage.

Not everyone needs chemotherapy, and not all regimens are the same. Doses, schedules and side‑effects vary widely based on the drugs used and your individual situation.

Before your first chemo session

Your team will check that it is safe to start treatment by reviewing blood counts, kidney and liver function and any other relevant tests. You will be told:

• Which drugs you will receive and how often
• How many “cycles” are planned initially
• What common side‑effects to watch for
• Which medicines you will take at home (such as anti‑nausea tablets)

Patient education materials often recommend wearing comfortable clothing, bringing something to read or listen to, and having a light meal before treatment unless you are told otherwise.

On the day of chemotherapy

Most chemotherapy is given as an outpatient, either in a day‑care unit or infusion centre.

Typical steps include:

1. Check‑in and vital signs – registration, weight, temperature, blood pressure.
2. Blood tests (if due that day) – to confirm it is safe to proceed.
3. Review by doctor or nurse – questions about symptoms, side‑effects and medicines you are taking.
4. IV line or port access – a cannula in the hand/arm or a port is used for infusion.
5. Pre‑medications – such as anti‑nausea drugs, steroids or allergy‑preventing medicines.
6. Chemotherapy infusion – may last from less than an hour to several hours, depending on the regimen.

Nurses will monitor you during the infusion and are trained to respond if you feel unwell or develop a reaction.

After you go home

Side‑effects can appear hours to days after treatment. Common issues include tiredness, nausea, appetite changes, temporary hair loss and changes in blood counts.

You will receive instructions on:

• When and how to take anti‑nausea tablets
• What symptoms require an urgent call (for example, fever, severe vomiting, uncontrolled diarrhoea, difficulty breathing, heavy bleeding)
• How to protect yourself from infection, such as frequent hand‑washing and avoiding sick contacts when counts are low

Follow‑up between cycles

Chemotherapy is usually given in cycles separated by rest periods to allow the body to recover. Before each new cycle, your team will review your symptoms and blood tests and may adjust the dose or timing to keep treatment as safe and effective as possible.