| Category of Drug | Antiarrhythmic Drugs |
| Mechanism of Action | |
| Indications | Adenosine is used as 1. Coronary vasodilator 2. paroxysmal supraventricular tachycardia 3. cardiac imaging for coronary artery disease 4. angina pectoris |
| Well Known Pharmaceutical Brands | |
| Available dosage forms | 1. TABLETS 2. INJECTIONS |
| Dose | Adenosine is taken orally; 40 to 80 mg, 3 to 4 times daily. The Maximum daily dose is 480 mg/ day |
| Contraindications | Second- or third-degree AV block and sick sinus syndrome (unless pacemaker fitted), acute myocardial infarction, cardiovascular shock; asthma |
| Precautions | 1. Atrial fibrillation or flutter 2. heart transplant; 3. pregnancy |
| Adverse Effects | 1. chest pain 2. Transient facial flush 3. bronchospasm 4. dyspnoea 5. nausea 6. severe bradycardia |
| Pregnancy Category | C |