426
RESULTS : Brimonidine was observed to cause IOP elevation , confirmed on rechallenge , scoring 8 ( strong probability ) on an adverse drug reaction probability score .
 IOP elevation, Brimonidine
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:
 IOP elevation, Brimonidine