TOPICS: Adenosine, gi protein, camp, l type calcium channels, potassium channels, av node block, very short acting, svt, orthodromic avrt, avnrt, atrial fibrillation, hypotension, methylxanthines, caffeine, theophylline, flushing, chest pain, impending doom, bronchospasm, asystole, preexcitation syndromes, antidromic avrt, wpw, asthma, av block, magnesium sulfate, calcium influx, afterdepolarizations, torsades de pointes, digoxin toxicity, refractory ventricular arrhythmias, hypotension, asystole, drowsiness, flushing, loss of reflexes, respiratory depression
