2024
Higher metoprolol / alpha - hydroxymetoprolol ratios in PMs were predictive for higher R - / S - isomer ratios of unchanged drug .
 Chemical: metoprolol; Chemical: alpha - hydroxymetoprolol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: metoprolol; Chemical: alpha - hydroxymetoprolol