Calcium channel blocker (CCB) (benzothiazepine). Direct IV single injections (bolus): initially 0.25mg/kg over 2 minutes; if needed, may give second dose (0.35mg/kg) after 15 minutes; subsequent ...

Give by IV bolus injection. Advise patients to seek immediate medical attention for a sudden loss of vision or hearing while on therapy. Pulmonary veno-occlusive disease: not recommended.