15529
The population pharmacokinetics ( PPK ) of atorvastatin and its principal active metabolite , o - hydroxyatorvastatin , were described in 6 - 17 years old pediatric hypercholesterolemia patients with a 2 - compartment model for both parent and metabolite .
 Chemical: atorvastatin; Chemical: o - hydroxyatorvastatin
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: atorvastatin; Chemical: o - hydroxyatorvastatin