7286
The objective of this study was to test a drug delivery system that combines iontophoresis and cation - exchange fibers as drug matrices for the controlled transdermal delivery of antiparkinsonian drug apomorphine .
 Chemical: apomorphine
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: apomorphine