427
However , following prolonged pretreatment with haloperidol ( three doses evenly spaced over 18 - 20 h ) or reserpine ( 18 - 20 h ) , DCPG robustly reverses haloperidol - induced catalepsy and reserpine - induced akinesia .
 Chemical: haloperidol; Chemical: reserpine; Chemical: DCPG; Chemical: haloperidol; Chemical: reserpine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: haloperidol, reserpine, DCPG, haloperidol, reserpine 
Answer:
 Chemical: haloperidol; Chemical: reserpine; Chemical: DCPG; Chemical: haloperidol; Chemical: reserpine