Amphotericin - Lipid Associated

Restricted
Restricted

C. diff Risk

Low

Oral Bioavailability

NA

Approximate Cost

$$$$$$

Spectrum Of Activity

Dosing

5 mg/kg, IV, q24hr. Infuse over 2 hours

5 mg/kg, IV, q24hr. Infuse over 2 hours

Contact pharmacy for more information regarding use in renal impairment.

General Information

Common Usage

  • Fungicidal therapy of yeast/fungus/mold infection (not for use in urinary tract infection)

  • Invasive candidiasis, aspergillosis, cryptococcosis

  • Visceral/mucocutaneous Leishmaniasis

  • Induction therapy for dimorphic fungii (cocci, blasto, histo)

Drug Monitoring

Renal function, fluid status, serum electrolytes (K, Mg)

Liver enzymes, CBC with differential

Adverse Effects

  • Infusion related symptoms: fever/rigors/N/V/headache

  • Electrolyte abnormalities - hypokalemia and hypomagnesemia, loss of bicarb

  • Nephrotoxicity ++

  • Anemia

  • Phlebitis

  • Paresthesias

Major Interactions

Enhance nephrotoxic effect with concomitant use of other nephrotoxins - use should be minimized during amphotericin therapy

Additional Information

*ASP approval required. Pre-approved if following a CH treatment pathway

*Lipid formulations of AmB (Ambisome, Abelcet) are NOT interchangable

Premedication with acetaminophen, diphenhydramine, or hydrocortisone for infusion related symptoms

Pharmacology

Antimicrobial class: Antifungal - polyene - Lipid formulations (designed to minimize toxicity)

Average serum half life:

  • No pediatric data

  • Liposomal: Adults: 100-153 hours (terminal half life)

  • Lipid Complex: Adults: 173 hours (terminal half life)

Route of Elimination: Lipid Complex: 0.9% of drug excreted in urine over 24h; effects of hepatic and renal impairment on drug disposition are unknown.