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The authors describe a case of neuroleptic malignant syndrome that occurred in a patient on amitriptyline and lithium carbonate .
 neuroleptic malignant syndrome, amitriptyline; neuroleptic malignant syndrome, lithium carbonate
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:
 neuroleptic malignant syndrome, amitriptyline; neuroleptic malignant syndrome, lithium carbonate