1694
In this case , unlike those previously reported , hyponatremia recurred 5 months after switching from citalopram to mirtazapine , which is believed to be a safe antidepressant .
 hyponatremia, citalopram; hyponatremia, mirtazapine
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:
 hyponatremia, citalopram; hyponatremia, mirtazapine