Milrinone Lactate in 5% Dextrose
MILRINONE LACTATE IN 5% DEXTROSE
Indications and usage INDICATIONS AND USAGE Milrinone is indicated for the short-term intravenous treatment of patients with acute decompensated heart failure.
Patients receiving milrinone should be observed closely with appropriate electrocardiographic equipment.
Structured Monograph
Clinical summary
Indications and usage INDICATIONS AND USAGE Milrinone is indicated for the short-term intravenous treatment of patients with acute decompensated heart failure. Patients receiving milrinone should be observed closely with appropriate electrocardiographic equipment. The facility for immediate treatment of potential cardiac events, which may include life threatening ventricular arrhythmias, must be available. The majority of experience with intravenous milrinone has been in patients receiving digoxin and diuretics. There is no experience in controlled trials with infusions of milrinone for periods exceeding 48 hours. Dosage and administration DOSAGE AND ADMINISTRATION Milrinone Lactate in 5% Dextrose Injection should be administered with a loading dose followed by a continuous infusion (maintenance dose) according to the following guidelines: Loading Dose 50 mcg/kg: Administer slowly over 10 minutes Note: Milrinone (200 mcg per mL) in Plastic Container is for intravenous infusion only. Dosage recommendations using a 1 mg per mL concentration of milrinone are included for informational purposes only. The table below shows the loading dose in milliliters (mL) of milrinone (1 mg/mL) by patient body weight (kg). Loading Dose (mL) Using 1 mg/mL Concentration Patient Body Weight (kg) kg 30 40 50 60 70 80 90 100 110 120 mL 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 The loading dose may be given undiluted, but diluting to a rounded total volume of 10 or 20 mL (see Maintenance Dose for diluents) may simplify the visualization of the injection rate. Maintenance Dose Infusion Rate Total Daily Dose (24 Hours) Minimum Standard Maximum 0.375 mcg/kg/min 0.50 mcg/kg/min 0.75 mcg/kg/min 0.59 mg/kg 0.77 mg/kg 1.13 mg/kg Administer as a continuous intravenous infusion The infusion rate should be adjusted according to hemodynamic and clinical response. Patients should be closely monitored. In controlled clinical studies, most patients showed an improvement in hemodynamic status as evidenced by increases in cardiac output and reductions in pulmonary capillary wedge pressure. Note: See “Dosage Adjustment in Renally Impaired Patients.” Dosage may be titrated to the maximum hemodynamic effect and should not exceed 1.13 mg/kg/day. Duration of therapy should depend upon patient responsiveness. The maintenance dose in mL/hr by patient body weight (kg) may be determined by reference to the following table. Milrinone Infusion Rate (mL/hr) Using 200 mcg/mL Concentration Maintenance Dose (mcg/kg/min) Patient Body Weight (kg) 30 40 50 60 70 80 90 100 110 120 0.375 3.4 4.5 5.6 6.8 7.9 9.0 10.1 11.3 12.4 13.5 0.400 3.6 4.8 6.0 7.2 8.4 9.6 10.8 12.0 13.2 14.4 0.500 4.5 6.0 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.0 0.600 5.4 7.2 9.0 10.8 12.6 14.4 16.2 18.0 19.8 21.6 0.700 6.3 8.4 10.5 12.6 14.7 16.8 18.9 21.0 23.1 25.2 0.750 6.8 9.0 11.3 13.5 15.8 18.0 20.3 22.5 24.8 27.0 Dosage Adjustment in Renally Impaired Patients Data obtained from patients with severe renal impairment (creatinine clearance = 0 to 30 mL/min) but without congestive heart failure have demonstrated that the presence of renal impairment significantly increases the terminal elimination half-life of milrinone. Reductions in infusion rate may be necessary in patients with renal impairment. For patients with clinical evidence of renal impairment, the recommended infusion rate can be obtained from the following table: Creatinine Clearance (mL/min/1.73m 2 ) Infusion Rate (mcg/kg/min) 5 0.20 10 0.23 20 0.28 30 0.33 40 0.38 50 0.43 Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Milrinone Lactate in 5% Dextrose Injection is a clear, colorless to pale yellow solution. DIRECTIONS FOR USE When administering Milrinone Lactate in 5% Dextrose Injection by continuous infusion, it is advisable to use a calibrated electronic infusion device. To open Tear at the notch and open the overwrap to remove solution container. Some opacity of the plastic due to moisture absorption during the sterilization process may be observed. This is normal and does not affect the solution quality or safety. The opacity will diminish gradually. After removing overwrap, check for minute leaks by squeezing inner bag firmly. If leaks are found, discard solution as sterility may be impaired. Preparation for Administration Visually inspect the container. If the administration port is damaged, detached, or not present, discard container as solution path sterility may be impaired. (Use aseptic technique) 1. Suspend container from eyelet support. 2. Remove top portion of twist off port at bottom of container. 3. Attach administration set. Refer to complete directions accompanying set. WARNING: DO NOT USE IN SERIES CONNECTIONS. Do not administer simultaneously with blood. Caution: Do not use plastic containers in series connections. Such use could result in air embolism due to residual air being drawn from the primary c
Monitoring
- • WARNINGS Whether given orally or by continuous or intermittent intravenous infusion, milrinone has not been shown to be safe or effective in the longer (greater than 48 hours) treatment of patients with heart failure.
- • In a multicenter trial of 1088 patients with Class III and IV heart failure, long-term oral treatment with milrinone was associated with no improvement in symptoms and an increased risk of hospitalization and death.
- • In this study, patients with Class IV symptoms appeared to be at particular risk of life-threatening cardiovascular reactions.
- • There is no evidence that milrinone given by long-term continuous or intermittent infusion does not carry a similar risk.
Interaction Notes
- • Drug Interactions No untoward clinical manifestations have been observed in limited experience with patients in whom milrinone was used concurrently with the following drugs: digitalis glycosides; lidocaine, quinidine; hydralazine, prazosin; isosorbide dinitrate, nitroglycerin; chlorthalidone, furosemide, hydrochlorothiazide, spironolactone; captopril; heparin, warfarin, diazepam, insulin; and potassium supplements.