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Mechanism of Action
- Slows conduction through the AV node by relaxing smooth muscle.
- Inhibits reentry during PSVT (paroxysmol supraventricular response)
- Decreases myocardial oxygen demand.
Onset of Action
- 5 minutes
- 5 - 15 minutes
- 10 - 60 minutes
- 2 - 8 hours
- Narrow-complex tachycardias including:
- Stable narrow-complex tachycardias if rhythm remains uncontrolled or unconverted by Adenosine or vagal maneuvers; or if SVT is recurrent.
- To control ventricular rate with A-Fib or A-Flutter.
- Heart block
- Conduction system disturbances
- Severe hypotension
- Cardiogenic shock
- Wolff-Parkinson-White Syndrome
- Pt on IV beta blockers
Precautions / Side Effects
- Monitor BP
2.5 - 5 mg IV or IO over 2 minutes.
Repeat dose of 5 - 10 mg IV or IO over 2 minutes; in 15 - 30 minutes if needed.
0 - 1 year: 0.1 - 0.2 mg/kg (max 2.0 mg) administered slowly.
1 - 15 years: 0.1 - 0.3 mg/kg (max 5.0 mg) administered slowly.
30 mg in 30 minutes
Routes / How Supplied
IO or IO