4566
High doses of isoniazid increase hypotension induced by vasodilators and change the accompanying reflex tachycardia to bradycardia , an interaction attributed to decreased synthesis of brain gamma - aminobutyric acid ( GABA ) .
 Chemical: isoniazid; Disease: hypotension; Disease: tachycardia; Disease: bradycardia; Chemical: gamma - aminobutyric acid; Chemical: GABA
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: isoniazid; Disease: hypotension; Disease: tachycardia; Disease: bradycardia; Chemical: gamma - aminobutyric acid; Chemical: GABA