8623
Benzocaine , an ester - type local anesthetic , was believed responsible for apparent methemoglobinemia in a cat .
 methemoglobinemia, Benzocaine
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:
 methemoglobinemia, Benzocaine