A scientist who specializes in the study of drugs and their effects on the body.

औषध विज्ञान का विशेषज्ञ

English Usage: The pharmacologist conducted extensive research on new pain relief medications.

Hindi Usage: औषध विज्ञान का विशेषज्ञ ने नए दर्द निवारक दवाओं पर विस्तृत शोध किया।