| Drug | Bolus (Adult, IV) | Continuous Infusion (Adult, IV) | Site of Action | Onset | Duration |
|---|---|---|---|---|---|
| Hydralazine | 5–10 mg | Arterial | 15–20 | 4–6 hr min | |
| Nitroprusside | 50–100 | 0.25–5 µg | Arterial µg/kg/min (50 mg in 250 mL, 200 µg/mL) | 1–2 Venous | 2–5 min |
| Nitroglycerin | 0.25–3 | Venous µg/kg/min (50 mg in 250 mL, 200 µg/mL) | 2–5 Arterial | 3–5 min |