851
However, the use of lithium should be avoided with any patient who is purging, since it may exacerbate the loss of intracellular potassium, thereby increasing the risk of cardiac toxicity.
 adverse event: exacerbate 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 adverse event: exacerbate 