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Risperidone - associated , benign transient visual disturbances in schizophrenic patients with a past history of LSD abuse .
 Chemical: Risperidone; Disease: visual disturbances; Disease: schizophrenic; Chemical: LSD
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:
 Chemical: Risperidone; Disease: visual disturbances; Disease: schizophrenic; Chemical: LSD