2049
Hyperammonemia has been described as a complication of valproic acid therapy but may often be overlooked as a cause of lethargy in the postictal patient who presents to the emergency department .
 adverse effect: Hyperammonemia, valproic acid; adverse effect: lethargy, valproic acid
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 adverse effect: Hyperammonemia, valproic acid; adverse effect: lethargy, valproic acid