A coronary vasoconstrictor substance is present in regular and "decaffeinated" forms of both percolated and instant coffee.
D000818:Animals; D001285:Atropine / Q000494:pharmacology; D002110:Caffeine / Q000494:pharmacology*; D002417:Cattle; D003069:Coffee; D003331:Coronary Vessels / Q000187:drug effects*; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects; D010643:Phenoxybenzamine / Q000494:pharmacology; D010646:Phentolamine / Q000494:pharmacology; D013662:Tea; D014662:Vasoconstrictor Agents; D014666:Vasomotor System / Q000187:drug effects*
D003069:Coffee; D013662:Tea; D014662:Vasoconstrictor Agents; D010643:Phenoxybenzamine; D002110:Caffeine; D001285:Atropine; D010646:Phentolamine