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Cancer

What Is Chemotherapy? An Oncologist Explains

Lauren Smith, MASanjai Sinha, MD
Written by Lauren Smith, MA | Reviewed by Sanjai Sinha, MD
Updated on July 3, 2025
Featuring Ashish Saxena, MDReviewed by Sanjai Sinha, MD | July 3, 2025

When you think of cancer treatment, the first thing that may come to mind is chemotherapy. That’s because chemotherapy has been a cancer-fighting mainstay since it was invented in the 1940s.

In this video, learn what chemotherapy is, how it works, and how it's commonly used today in the treatment of cancer.

References

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Lauren Smith, MA
Written by:
Lauren Smith, MA
Lauren Smith, MA, has worked in health journalism since 2017. Before joining GoodRx, she was the senior health editor and writer for HealthiNation.
Sanjai Sinha, MD
Reviewed by:
Sanjai Sinha, MD
Sanjai Sinha, MD, is a board-certified physician with over 20 years of experience. He specializes in internal medicine.

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