4149
Hexabrix and Vasurix polyvidone are considered the best contrast media for hysterosalpingography and perhaps because of its low toxicity Hexabrix should be preferred .
 Chemical: Hexabrix; Chemical: Vasurix polyvidone; Chemical: contrast media; Disease: toxicity; Chemical: Hexabrix
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: Hexabrix; Chemical: Vasurix polyvidone; Chemical: contrast media; Disease: toxicity; Chemical: Hexabrix