15309
Stimulatory effects on certain cells may indicate a possible , limited therapeutic role ; advice regarding smoking cessation perioperatively should remain due to the other harmful components of cigarette smoke , but there may be scope for allowing the use of nicotine patches instead of complete abstention .
 Chemical: nicotine
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: nicotine