27807
In addition , both MDPV and METH increased locomotor activity at lower doses ( 0 . 5 - 1 . 0 mg / kg , s . c . ) and transiently decreased activity at the highest dose ( 5 . 6 mg / kg , s . c . ) .
 Chemical: MDPV; Chemical: METH
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: MDPV; Chemical: METH