Chemotherapy for oral cancer

Last medical review:

Chemotherapy uses drugs to destroy cancer cells. These drugs target rapidly dividing cells throughout the whole body. This means that chemotherapy kills cancer cells but it can also damage healthy cells.

With most types of chemotherapy, the drugs travel through the blood to reach and destroy cancer cells all over the body, including cells that may have broken away from the primary tumour. This is described as systemic therapy.

Some people with oral cancer have chemotherapy. If you have chemotherapy, your healthcare team will use what they know about the cancer and about your health to plan the drugs, doses and schedules.

Chemotherapy is usually offered along with other cancer treatments. You may have chemotherapy to:

  • destroy cancer cells left behind after surgery and reduce the risk that the cancer will come back (recur) (called adjuvant chemotherapy)
  • try to slow the growth of the cancer
  • relieve pain or control the symptoms of metastatic oral cancer (called palliative chemotherapy)

Chemotherapy and radiation therapy may be given during the same time period to treat oral cancer. This is called chemoradiation. Some chemotherapy drugs can help make radiation work better by making cancer cells more sensitive to radiation. Combining chemotherapy and radiation therapy can be more effective than either treatment on its own.

Chemotherapy drugs commonly used for oral cancer

The most common chemotherapy drugs used to treat oral cancer include:

  • cisplatin
  • fluorouracil (also called 5-fluorouracil or 5-FU)
  • carboplatin
  • paclitaxel
  • docetaxel
  • hydroxyurea

The most common chemotherapy drug combinations used to treat oral cancer are:

  • cisplatin and fluorouracil
  • cisplatin and paclitaxel
  • fluorouracil and hydroxyurea

If oral cancer comes back or has metastasized, the following drugs may be used:

  • cisplatin
  • carboplatin
  • paclitaxel
  • docetaxel
  • fluorouracil
  • methotrexate
  • capecitabine

Most chemotherapy drugs used for oral cancer are given intravenously (through a needle into a vein). Some chemotherapy drugs are given as a pill and taken by mouth (orally).

Side effects of chemotherapy

Side effects of chemotherapy will depend mainly on the drug, the dose, how it's given and your overall health. Tell your healthcare team if you have side effects that you think are from chemotherapy. The sooner you tell them of any problems, the sooner they can suggest ways to help you deal with them.

Common side effects of chemotherapy drugs for oral cancer are:

Find out more about chemotherapy

Find out more about chemotherapy and side effects of chemotherapy. To make the decisions that are right for you, ask your healthcare team questions about chemotherapy.

Details on specific drugs change regularly. Find out more about sources of drug information and where to get details on specific drugs.

Expert review and references

  • Mark Taylor, MD, FRCSC
  • American Cancer Society. Oral Cavity (Mouth) and Oropharyngeal (Throat) Cancer. 2021. https://www.cancer.org/.
  • Cancer Research UK. Mouth and oropharyngeal cancer. 2024. https://www.cancerresearchuk.org/.
  • Dziegielewski PT, Mendenhall WM, Dunn LA. Cancer of the Oral Cavity. DeVita VT Jr, Lawrence TS, Rosenberg S. eds. DeVita Hellman and Rosenberg's Cancer: Principles and Practice of Oncology. 12th ed. Philadelphia, PA: Wolters Kluwer; 2023: Kindle version, [chapter 27], https://read.amazon.ca/?asin=B0BG3DPT4Q&language=en-CA.
  • Machiels JP, Leemans CR, Golusinski W, Grau C, Licitra L, Gregoire V. Squamous cell carcinoma of the oral cavity, larynx, oropharynx and hypopharynx: EHNS–ESMO–ESTRO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Annals of Oncology. 2020: 31(11):1462–1475.
  • National Comprehensive Cancer Network. NCCN Clinical Practice Guidelines in Oncology: Head and Neck Cancers Version 2.2025 . 2025.

Your trusted source for accurate cancer information

With support from readers like you, we can continue to provide the highest quality cancer information for over 100 types of cancer.

We’re here to ensure easy access to accurate cancer information for you and the millions of people who visit this website every year. But we can’t do it alone.

Every donation helps fund reliable cancer information, compassionate support services and the most promising research. Please give today because every contribution counts. Thank you.

Medical disclaimer

The information that the Canadian Cancer Society provides does not replace your relationship with your doctor. The information is for your general use, so be sure to talk to a qualified healthcare professional before making medical decisions or if you have questions about your health.

We do our best to make sure that the information we provide is accurate and reliable but cannot guarantee that it is error-free or complete.

The Canadian Cancer Society is not responsible for the quality of the information or services provided by other organizations and mentioned on cancer.ca, nor do we endorse any service, product, treatment or therapy.


1-888-939-3333 | cancer.ca | © 2025 Canadian Cancer Society