Types of Chemotherapy Drugs: — The Main Classes Explained

Chemotherapy attacks any rapidly dividing cell, which is why it affects some healthy tissues alongside cancer. Targeted therapy is designed to block a specific molecule that cancer cells carry and normal cells usually do not. Whether targeted therapy applies to you depends on biomarker testing of your tumour. Your oncologist will explain which of the two — or a combination — is recommended for your specific diagnosis.

Hair loss depends on which drug class is in your regimen, not simply on whether it is chemotherapy. Anthracyclines and taxanes are strongly associated with hair loss. Antimetabolites and most platinum compounds cause less hair loss in most people. If your regimen includes a class known for hair loss, your team will tell you before treatment starts and can discuss options such as scalp cooling.

Yes. Most regimens combine drugs from different classes, given in the same session or on different days of the same cycle. The schedule is chosen to maximise the effect on cancer cells while giving healthy tissue time to recover between doses. Your oncology nurse will walk you through what happens on each day of your cycle so you know what to expect.

The nerve tingling associated with taxanes and some platinum compounds — called peripheral neuropathy — usually starts as numbness, tingling, or pins and needles in the fingers and toes. For some people it fades after treatment ends; for others it takes longer to improve or lingers. Tell your team as soon as you notice it, because the timing and severity matter for how your treatment is managed going forward.

Platinum compounds, especially cisplatin, are filtered through the kidneys and can affect their filtering ability over repeated cycles. This is why kidney function is checked before each dose and why intravenous fluids are usually given alongside treatment to help flush the drug through. Carboplatin and oxaliplatin affect the kidneys less than cisplatin does, which is one reason they are used when kidney protection is a priority.

Every class carries side effects, and which ones matter most depends on your age, your other health conditions, and which organs are most important to protect in your case. There is no universally gentler class — only the class or combination that best balances effectiveness against risk for your specific situation. That is a question your treating oncologist will answer based on your full picture, not on the diagnosis alone.