MILRINONE

(Primacor)

Standard Prescription

milrinone__mcg IV x 1 loading dose
milrinone__mcg/kg/min continuous IV infusion

Dosages

Inotrope/Vasodilator:
Loading dose: 50 mcg/kg/dose IV over 10 min.
Maintenance: 0.25-1 mcg/kg/min by continuous IV infusion.

*NB: Loading doses in post-op open heart patients require approval from a pediatric intensive care physician.

Mechanism of Action

Bipyridine phosphodiesterase III inhibitor resulting in positive inotrope effects and vasodilatation

Forms Supplied

Injection: 1 mg/mL, 10 mL vials

Standard concentrations:
NICU: 100 mcg/mL in D5W
Other areas: 100 mcg/mL; 200 mcg/mL; 400 mcg/mL in D5W;

Comments

Bipyridine phosphodiesterase III inhibitor resulting in positive inotrope effects  and vasodilatation.

Contraindicated in obstructive cardiac lesions such as pulmonary and aortic stenosis and coarctation of the aorta.

Side effects include: headache, dysrhythmias, hypotension, hypokalemia, abnormal liver function tests, tremor, thrombocytopenia (lower incidence than amrinone), bronchospasm.

Half-life is about 2 hrs in children with normal renal function.

Half-life is prolonged in patients with renal dysfunction.

References

44, 119

Last Edited

2019-07-01 05:43:55