<prompt> Anesthetic agent with vasoconstrictor is contraindicated inDigital blockSpinal blockEpidural blockRegional anesthesia  <response>: Refer Katzung 11e p446 Vasoconstrictors are contraindicated if LAs are used for organs with end aeries like tips of fingers, toes, nose, pinnacle, and penis due to risk of ischemia and necrosis 