This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
All are true about bupivacaine Except 
Select and explain. 
A. Less cardiotoxic than lignocaine, B. Dose increases with adrenaline, C. Long acting, D. Cannot given m vein
A: Less cardiotoxic than lignocaine
Answer: A: Less cardiotoxic than lignocaine 
Explanation: Bupivacaine is more prone to prolong QTc interval and induce ventricular tachycardia or cardiac depression - should not be used for IV regional anesthesia. Whereas Lignocaine cause arrhythmia in overdosage only. All other statements are true. From Tripati 7th edition Page no 366, 367