<prompt> Effect of cocaine on blood vessels is?VasoconstrictorVasodilatorVasoineffectiveFirst constrict then dilates  <response>: ANSWER: A VasoconstrictorREF: KDT 4th e p. 166Effect of local anesthetic on blood vessels is:VasoconstrictorVasoineffectiveVasodilatorCocaineLignocaineOthers 