3033
Ethopropazine and benztropine were found to be equally effective in controlling parkinsonian symptoms and were as efficacious as procyclidine , their previous antiparkinsonian drug .
 Chemical: Ethopropazine; Chemical: benztropine; Disease: parkinsonian symptoms; Chemical: procyclidine
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: Ethopropazine; Chemical: benztropine; Disease: parkinsonian symptoms; Chemical: procyclidine