Assertion: local anesthetic's vasoconstrictor | /r/AtLocation | local anesthetics
Facets:
value: to constrict blood vessels
type: PURPOSE
value: to prolong the duration of anesthesia
type: PURPOSE
Source sentences:
text: Vasoconstrictors are added to local anesthetics to prolong the duration of anesthesia.
text: 9 Vasoconstrictors (e.g., epinephrine, levonordefrin, norepinephrine are added to local anesthetics to constrict blood vessels in the area of injection.