2377
Cessation of sorafenib and administration of Ca - channel blocker and nitrates ameliorated his symptoms , but relapse occurred after resumption of sorafenib .
 Chemical: sorafenib; Chemical: Ca; Chemical: nitrates; Chemical: sorafenib
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: sorafenib; Chemical: Ca; Chemical: nitrates; Chemical: sorafenib