This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Which of the agents is used as medical treatment for variceal bleed? 
Select and explain. 
A. Octreotide, B. Desmopressin, C. Vasopressin, D. Nitroglycerine
A: Octreotide
Answer: A: Octreotide 
Explanation: Somatostatin and the synthetic longer lasting analogue OCTREOTIDE are now the first choice for the pharmacological control of acutely bleeding varices. Ref: CMDT 2008 Edition, Page 559-560