4006
Sodium nitrite in combination with quinacrine hydrochloride appeared to have no additional effect .
 Chemical: Sodium nitrite; Chemical: quinacrine hydrochloride
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: Sodium nitrite; Chemical: quinacrine hydrochloride