7884
Severe hyperkalemia as a complication of timolol , a topically applied beta - adrenergic antagonist .
 Severe hyperkalemia, timolol
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:
 Severe hyperkalemia, timolol