![](https://webarchive.library.unt.edu/eot2008/20081103221730im_/http://www.cancer.gov/images/spacer.gif) |
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![](https://webarchive.library.unt.edu/eot2008/20081103221730im_/http://www.cancer.gov/images/spacer.gif)
| A substance that is being studied in the treatment of cancer. It may prevent cancer cells from dividing. It belongs to the family of drugs called cell cycle inhibitors. |
Previous Definitions: | Rituxan, rituximab, RK-0202, RMP-7, RNA | Next Definitions: | Ro 50-3821, rofecoxib, Roman chamomile, romidepsin, romiplostim |
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