4855
However , given the clinically significant result to the interaction between tolazoline and cimetidine we report , the use of cimetidine in tolazoline induced upper gastrointestinal hemorrhage should deserve more attention .
 upper gastrointestinal hemorrhage, cimetidine; upper gastrointestinal hemorrhage, cimetidine; upper gastrointestinal hemorrhage, tolazoline; upper gastrointestinal hemorrhage, tolazoline
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:
 upper gastrointestinal hemorrhage, cimetidine; upper gastrointestinal hemorrhage, cimetidine; upper gastrointestinal hemorrhage, tolazoline; upper gastrointestinal hemorrhage, tolazoline