血けっ管かん収しゅう縮しゅく薬やくMeaningsNoun1. vasoconstrictorKanji used血blood管pipe収obtain縮shrink薬medicineComposed of血けっ管かんblood vessel; veinNoun収しゅう縮しゅくcontraction; shrinking; shrinkage; constriction; deflationNoun薬やくdope; narcotic; drugNoun