7932
A small initial dose of prazosin ranging from 0.5 to 1 mg has been recommended to avoid the first - dose phenomenon characterized by a sudden and severe drop in blood pressure after the administration of the first dose of prazosin .
 adverse effect: severe drop in blood pressure, prazosin; adverse effect: severe drop in blood pressure, prazosin
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
 Entity Pairs:  severe drop in blood pressure, prazosin; severe drop in blood pressure, prazosin 
Answer:
 adverse effect: severe drop in blood pressure, prazosin; adverse effect: severe drop in blood pressure, prazosin