अर्थ : 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.
समानार्थी : phase iv
Phase iv clinical trial ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Phase iv clinical trial ka matlab kya hota hai?