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Nitroprusside caused significant decreases in arterial blood pressure and systemic vascular resistance and increases in heart rate , but did not change cardiac output or QS / QT .
 Nitroprusside, decreases in arterial blood pressure
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Nitroprusside, decreases in arterial blood pressure