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Moreover , verapamil and nimodipine significantly down - regulated levels of blood urea nitrogen and creatinine in the serum .
 Chemical: verapamil; Chemical: nimodipine; Chemical: urea; Chemical: nitrogen; Chemical: creatinine
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: verapamil; Chemical: nimodipine; Chemical: urea; Chemical: nitrogen; Chemical: creatinine