2630
Fibrosis of corpus cavernosum after intracavernous injection of phentolamine / papaverine .
 Fibrosis of corpus cavernosum, papaverine; Fibrosis of corpus cavernosum, phentolamine
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:
 Fibrosis of corpus cavernosum, papaverine; Fibrosis of corpus cavernosum, phentolamine