Not true about nitroglycerine is that -
Causes AV conduction delay
Causes tolerance
Caused reflex tachycardia
Caused hypotension
Ans. is 'a' i.e., Causes AV conduction delay Nitroglycerine and other nitrates have no effect on A-V conduction.About other optionso Tolerance can develop if nitrates are continuously present in the body.o Nitrates can cause reflex tachycardia and hypotension.