12527
Because of a hypersensitivity reaction , initial therapy with penicillin G and gentamicin was stopped and substituted with cefazolin .
 hypersensitivity reaction, gentamicin; hypersensitivity reaction, penicillin G
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 hypersensitivity reaction, gentamicin; hypersensitivity reaction, penicillin G