15602
Acitretin is a synthetic retinoid used for severe extensive psoriasis and it has been shown to be an effective and a safe therapeutic drug for other diseases including cancer when used in combination with other agents .
 Chemical: Acitretin
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: Acitretin