Potential for enhanced effects of adenosine | Elderly people |
Sinus node dysfunction | |
Dipyridamole | |
Carbamazepine | |
Drugs affecting AV conduction (digoxin, verapamil, β blockers) | |
Potential for reduced effect of adenosine | Theophylline |
Caffeine | |
Potential for induction of tachyarrhythmias | History of recurrent palpitation (suggesting possibility of latent pre-excitation or dual AV node physiology54,55) |