5773
Flutamide withdrawal syndrome is characterized by a decrease in prostate - specific antigen ( PSA ) after flutamide withdrawal in a subset of patients with progressing metastatic carcinoma of the prostate .
 decrease in prostate - specific antigen, Flutamide; decrease in prostate - specific antigen, flutamide; Flutamide withdrawal syndrome, Flutamide; Flutamide withdrawal syndrome, flutamide
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:
 decrease in prostate - specific antigen, Flutamide; decrease in prostate - specific antigen, flutamide; Flutamide withdrawal syndrome, Flutamide; Flutamide withdrawal syndrome, flutamide