“Because of the widespread use of caffeine , this pharmacologic interaction may be of clinical importance, for example, in the diagnostic use of dipyridamole in thallium‐201 myocardial imaging.”
“ Caffeine induced … dipyridamole , with a significant negative correlation between the dose of caffeine on the one hand (0, 1, 2, and 4 mg/kg) and the … = −0.53), pulse pressure (r = −0.50), heart rate (r = −0.95), and rate‐pressure product (r = −0.93) on the other hand.”
“We conclude that caffeine attenuates the hemodynamic response to dipyridamole infusion in humans in a dose‐dependent fashion.”