This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
Which of the following agents is recommended for medical treatment of variceal bleed 
Select and explain. 
A. Octreotide, B. Desmopressin, C. Vasopressin, D. Nitroglycerin
A: Octreotide
Answer: A: Octreotide 
Explanation: Somatostatin or its analogue octreotide are the agents of choice for medical management of variceal bleed Octreotide and somatostatin have been found to be effective in achieving hemostasis and preventing early rebleeding Terlipressin is released in sustained and slow manner. It does not share several systemic side effects of vasopressin and may be used to control variceal bleeding Drugs used in poal hypeension Drugs decreasing poal blood flow Non selective beta blockers Vasopressin and Terlipressin Somatostatin and octreotide Drugs decreasing intrahepatic resistance Nitrates Alpha-1 - blocker (prazocin) Angiotensin receptor blockers Ref: Harrison's 19th edition Pgno :2063-2064