3820
Differential influences of ethanol on early exposure to racemic methylphenidate compared with dexmethylphenidate in humans .
 Chemical: ethanol; Chemical: methylphenidate; Chemical: dexmethylphenidate
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: ethanol; Chemical: methylphenidate; Chemical: dexmethylphenidate