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Anidulafungin

Pronouncation: (AN-ih-doo-la-FUN-jin)
Class: Antifungal

Trade Names:
Eraxis
- Powder for injection, lyophilized 50 mg

Pharmacology

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As a treatment for...	Avg User Ratings [?]
Esophageal Candidiasis	Be the first to rate it 0 comments
Candida Infections - Systemic	Be the first to rate it 0 comments

Compare with other drugs.

Inhibits formation of an essential component of fungal cell walls by inhibiting glucan synthase, an enzyme present in fungal cells.

Pharmacokinetics

Absorption

C _max ranges from 3.55 to 10.9 mg/L; AUC ranges from 42.3 to 168.9 mg•h/L.

Distribution

Vd is 30 to 50 L. Protein binding is 84%.

Metabolism

Undergoes slow chemical degradation at physiologic temperature and pH. Anidulafungin is not a substrate, inducer, or inhibitor of CYP isozymes.

Elimination

Cl is 0.84 to 0.78 L/h; t _½ is 43.2 to 50.3 h. Approximately 30% excreted in feces over 9 days and less than 1% excreted in urine.

Special Populations

Renal Function Impairment

Dosage adjustments are not necessary based on degree of renal insufficiency, including hemodialysis.

Hepatic Function Impairment

Dosage adjustment not necessary based on mild, moderate, or severe hepatic insufficiency.

Elderly

Dosage adjustments not necessary for elderly patients.

Gender

Dosage adjustments not necessary based on gender.

Race

Dosage adjustments not necessary based on race.

HIV status

Dosage adjustments not necessary based on HIV status, including coadministration of antiretroviral therapy.

Indications and Usage

Treatment of esophageal candidiasis, candidemia, and other forms of Candida infections.

Contraindications

Hypersensitivity to echinocandins or any component of the product.

Dosage and Administration

Candidemia or other Candida Infections
Adults

IV Single 200 mg loading dose on day 1 followed by 100 mg/day thereafter, generally for at least 14 days after the last positive culture.

Esophageal Candidiasis
Adults

IV Single 100 mg loading dose on day 1 followed by 50 mg/day thereafter for a minimum of 14 days or at least 7 days following resolution of symptoms.

General Advice

For IV infusion, not for IV bolus injection.
Only reconstitute with companion diluent (20% [w/w] dehydrated alcohol in water for injection) and subsequently dilute only with dextrose 5% injection or sodium chloride 0.9% injection.
Reconstitute each 50 mg vial with 15 mL of companion diluent to a concentration of 3.33 mg/mL.
Aseptically transfer the contents of the reconstituted vial(s) into an IV bag (or bottle) containing dextrose 5% injection or sodium chloride 0.9% injection (normal saline) to provide an infusion solution concentration of 0.5 mg/mL.
Rate of infusion should not exceed 1.1 mg/min.
Do not administer if particulate matter or discoloration noted.

Storage/Stability

Store unreconstituted vials and companion vials at 77°F; excursions permitted to 59° to 86°F. Do not freeze.

Store reconstituted solution at 77°F; excursions permitted to 59° to 86°F. Do not freeze. The reconstituted solution must be further diluted to an infusion solution and administered within 24 h.

Store the infusion solution at 77°F; excursions permitted to 59° to 86°F.

Drug Interactions

Cyclosporine

Anidulafungin AUC may be slightly increased.

Laboratory Test Interactions

None well documented.

Adverse Reactions

Cardiovascular

Atrial fibrillation, hypertension, hypotension, right bundle branch block, sinus arrhythmia, superficial thrombophlebitis, ventricular extrasystoles (less than 2%).

CNS

Headache (1%); convulsions, dizziness (less than 2%).

Dermatologic

Rash (1%); angioneurotic edema, erythema, flushing, increased sweating, pruritus, urticaria (less than 2%).

EENT

Blurred vision, eye pain, visual disturbance (less than 2%).

GI

Diarrhea (3%); constipation, diarrhea NOS, dyspepsia, fecal incontinence, upper abdominal pain (less than 2%); nausea, vomiting (1%).

Hematologic-Lymphatic

Deep vein thrombosis, leukopenia, neutropenia (1%); coagulopathy, thrombocytopenia (less than 2%).

Hepatic

Cholestasis, hepatic necrosis (less than 2%).

Lab Tests

Decreased potassium (3%); increased ALT (2%); increased alkaline phosphatase, increased hepatic enzyme (2%); increased AST, increased gamma-glutamyl transferase (1%); decreased magnesium and platelet count, increased amylase, bilirubin, calcium, CPK, creatinine, lipase, magnesium, platelet count, sodium and urea, PT prolongation, QT prolongation (less than 2%).