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(milrinone lactate) Injection
200 MCG/ML IN 5% Dextrose Injection
PRIMACOR, brand of milrinone lactate injection, is a member of a class of bipyridine inotropic/vasodilator agents with phosphodiesterase inhibitor activity, distinct from digitalis glycosides or catecholamines. PRIMACOR (milrinone lactate) is designated chemically as 1,6-dihydro-2-methyl-6-oxo-[3,4'-bipyridine]-5-carbonitrile lactate and has the following structure:
Milrinone is an off-white to tan crystalline compound with a molecular weight of 211.2 and an empirical formula of C12 H9 N3 O. It is slightly soluble in methanol, and very slightly soluble in chloroform and in water. As the lactate salt, it is stable and colorless to pale yellow in solution. PRIMACOR is available as sterile aqueous solutions of the lactate salt of milrinone for infusion intravenously.
Pre-Mix Flexible Containers: The Flexible Containers provide two ready-to-use dilutions of milrinone in volumes of 100 mL and 200 mL of 5% Dextrose Injection. Each mL contains milrinone lactate equivalent to 200 mcg milrinone. The nominal concentration of lactic acid is 0.282 mg/mL. Each mL also contains 49.4 mg dextrose, anhydrous, USP. The pH is adjusted to between 3.2 and 4.0 with lactic acid or sodium hydroxide. The flexible plastic container is comprised of polyvinyl chloride with a foil overwrap. Water can permeate the plastic into the overwrap, but the amount is insufficient to significantly affect the pre-mix solution.
What are the possible side effects of milrinone (Primacor)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Tell your caregivers at once if you have a serious side effect such as:
- chest pain;
- feeling like you might pass out;
- bronchospasm (wheezing, chest tightness, trouble breathing); or
- low potassium (confusion, uneven heart rate, extreme thirst, increased urination, leg discomfort, muscle weakness or limp feeling).
Less serious side effects may...
Last reviewed on RxList: 7/2/2008
This monograph has been modified to include the generic and brand name in many instances.
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