What is the meaning of phase iv?

noun

  • Sometimes the FDA approves a drug for general use but requires the manufacturer to continue to monitor its effects; during this phase the drug may be tried on slightly different patient populations than those studied in earlier trials.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). phase iv. Retrieved September 24, 2026, from http://smartdefine.org/phase_iv/definitions/1301595
ChicagoWordNet. 2010. "phase iv" http://smartdefine.org/phase_iv/definitions/1301595 (accessed September 24, 2026).
HarvardWordNet 2010, phase iv, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/phase_iv/definitions/1301595>.
MLAWordNet. "phase iv" 23 October 2010. Web. 24 September 2026. <http://smartdefine.org/phase_iv/definitions/1301595>