2703
Post hoc analyses indicated that efficacy was similar with asenapine and haloperidol ; greater contrasts were seen in AEs , especially extrapyramidal symptoms .
 asenapine, haloperidol, extrapyramidal symptoms
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 asenapine, haloperidol, extrapyramidal symptoms