4108
Fifty - six days after initiation of the treatment the patient presented hallucinations that only stopped after the withdrawal of psycho - active drugs and tramadol .
 Disease: hallucinations; Chemical: tramadol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: hallucinations; Chemical: tramadol