ScienceContemporaryglobalhigh confidence

Caffeine in cocoa may block the effects of dipyridamole (Persantine) or adenosine (Adenocard) used in cardiac stress tests.

Notes on verification

Well-corroborated by peer-reviewed cardiology/nuclear medicine literature and clinical drug interaction databases; mechanism (adenosine receptor antagonism by caffeine) is well-established pharmacology, though clinical significance varies between dipyridamole (more affected) and adenosine (less consistently affected). [cascade flags: aggregator_dropped_primary_exists | tier=silver indep_score=0.97 clusters=5 claim_tier=notable | kind=empirical eligibility=high (extractor: empirical/medium)]

Sources

Caffeine in cocoa may block the effects of dipyridamole (… · DeepInquiry