Camptosar

Part of speech: noun

Definitions

1. A brand-name anticancer medication containing irinotecan, used mainly to treat colorectal cancer by blocking an enzyme needed for DNA repair
2. A trade-name chemotherapy drug whose active ingredient, irinotecan, is given intravenously to treat advanced bowel and colon cancers
3. The proprietary pharmaceutical product of irinotecan, a cytotoxic agent prescribed to slow the growth of certain malignant tumours

Etymology: Camptosar is a brand name, not an ordinary English word, and it was coined in the late twentieth century by the pharmaceutical company Pharmacia & Upjohn for its drug irinotecan. The name was built from parts that signal the drug's purpose rather than from an existing dictionary root. "Camp-" points to the camptothecin family of plant alkaloids, from which irinotecan was derived, and the name "camptothecin" itself comes from the Chinese happy tree, "Camptotheca acuminata," whose Greek-based genus name refers to its bent, curved seeds or fruit. The "-sar" ending is a common invented suffix in drug naming, not a meaningful English or Latin element. Trade names of this kind are typically tested for memorability, pronunciation across languages, and freedom from existing trademarks, so their letters are chosen by marketing and linguistic screening rather than by historical usage.