Table 7.

Comparison between adenosine and dipyridamle characteristics

	Adenosine	Dipyridamole
Duration of action	30 sec	30 min
Time to max. Effect	30–55 sec	6–16 min
Advantage	Short action, short-lasting adverse effects	prolonged action allow to assess CFR and wall motion abnormalities during the same examination
Disadvantage	Frequent- hyperventilation Rare – bradycardia, AV block, hypotension, flushing, headache,	possibility of antidote-resistance prolonged ischemia, hypotension, flushing, headache, hyperventilation,