Skip to main content

Amphotericin B Dosage

Medically reviewed by Drugs.com. Last updated on Aug 16, 2023.

Applies to the following strengths: 50 mg; 100 mg/mL

Usual Adult Dose for Ocular Fungal Infection

5 to 10 micrograms INTRAVITREALLY



Comments:

Use(s): Aspergillus endophthalmitis

Usual Adult Dose for Aspergillosis - Invasive

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Cumulative dose: Up to 3.6 grams
Duration of therapy: Up to 11 months

Comments:

Usual Adult Dose for Blastomycosis

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Pulmonary blastomycosis (moderately severe to severe): 0.7 to 1 mg/kg IV once a day for 1 to 2 weeks or until improvement is noted

Disseminated extrapulmonary blastomycosis(moderately severe to severe): 0.7 to 1 mg/kg IV once a day for 1 to 2 weeks or until improvement is noted

Immunocompromised patients with blastomycosis: 0.7 to 1 mg/kg IV once a day for 1 to 2 weeks or until improvement is noted

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Usual Adult Dose for Candida Urinary Tract Infection

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Patients undergoing urologic procedures: 0.3 to 0.6 mg/kg IV once a day for several days before and after the procedure

Fluconazole-resistant candida glabrata: 0.3 to 0.6 mg/kg IV once a day for 1 to 7 days

Symptomatic ascending candida pyelonephritis from fluconazole-resistant candida glabrata: 0.3 to 0.6 mg/kg IV once a day for 1 to 7 days

Symptomatic ascending candida pyelonephritis from fluconazole-resistant candida kryseu: 0.3 to 0.6 mg/kg IV once a day for 1 to 7 days

Maximum IV dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Cystitis due to fluconazole-resistant species: 50 mg/mL in sterile water as a bladder irrigation once a day for 5 days

Candida urinary tract infection with fungus balls in patients with nephrostomy tubes: 25 to 50 mg in 200 to 500 mL sterile water IRRIGATED THROUGH the nephrostomy tubes

Comments:

Use(s): Candiduria

Usual Adult Dose for Candidemia

Candida chorioretinitis without vitreous and with macular involvement: 5 to 10 mcg/0.1 mL sterile water by INTRAVITREAL injection


Central nervous system candidiasis in patients in whom a ventricular device cannot be removed: 0.01 to 0.5 mg in 2 mL of 5% dextrose administered THROUGH THE DEVICE into the ventricle

Comments:

Usual Adult Dose for Coccidioidomycosis

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Severe, non-meningeal infection: 0.7 to 1 mg/kg/day IV
Duration of therapy: Until clinical improvement

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Use(s): Coccidioidomycosis

Usual Adult Dose for Cryptococcal Meningitis - Immunocompetent Host

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Induction dose: 0.7 to 1 mg/kg IV once a day for at least 4 weeks

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Use(s): Treatment of cryptococcal meningoencephalitis

Usual Adult Dose for Histoplasmosis - Immunocompetent Host

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Moderately severe to severe pulmonary histoplasmosis: 0.7 to 1 mg/kg IV once a day
Duration of therapy: 1 to 2 weeks

Moderately severe to severe progressive disseminated histoplasmosis: 3 mg/kg IV once a day
Duration of therapy: 1 to 2 weeks

Progressive disseminated histoplasmosis: 1 mg/kg IV once a day for 4 to 6 weeks
OR
1 mg/kg IV once a day for 2 to 4 weeks, followed by itraconazole

CNS histoplasmosis: 1 mg/kg IV once a day
Duration of therapy: 4 to 6 weeks

Histoplasmosis in pregnancy: 3 to 5 mg/kg IV once a day
Duration of therapy: 4 to 6 weeks

Progressive disseminated histoplasmosis: 1 mg/kg IV once a day
Duration of therapy: 4 to 6 weeks; 2 to 4 weeks if followed by itraconazole


Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Usual Adult Dose for Oral Thrush

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Fluconazole-refractory oropharyngeal candidiasis: 0.3 mg/kg IV once a day

Esophageal candidiasis: 0.3 to 0.7 mg/kg IV once a day

Fluconazole-refractory esophageal candidiasis: 0.3 to 0.7 mg/kg IV once a day
Duration of therapy: 21 days

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Usual Adult Dose for Sporotrichosis

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED
Cumulative dose: Up to 2.5 grams total
Duration of therapy: Up to 9 months

Comments:

Usual Adult Dose for Leishmaniasis

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Visceral Leishmaniasis: 0.75 to 1 mg/kg IV once a day or every other day for 20 to 30 doses

Mucosal Leishmaniasis: 0.1 to 1 mg/kg IV once a day for 20 to 45 doses

Cutaneous Leishmaniasis: 0.7 mg/kg IV once a day for 25 to 30 doses

Mucocutaneous Leishmaniasis: 0.7 to 1 mg/kg IV every other day for up to 25 to 45 doses

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Usual Adult Dose for Mucormycosis - Invasive

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Use(s): Rhinocerebral mucormycosis (phycomycosis)

Usual Adult Dose for Systemic Fungal Infection

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose: 1 mg in 50 mL dextrose IV over 30 minutes

Maintenance dose: 0.25 to 1 mg/kg slow IV daily
Duration of therapy: 10 to 14 days

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Use(s): Systemic mycosis

Usual Pediatric Dose for Blastomycosis

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Children with severe blastomycosis: 0.7 to 1 mg/kg IV once a day

Newborns with evidence of infection: 1 mg/kg IV once a day

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Usual Pediatric Dose for Candidemia

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Maintenance dose: 1 mg/kg IV once a day
Duration of therapy: 2 weeks after documented clearance of candida from the bloodstream, if neutropenia and candidemia symptoms have resolved

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Usual Pediatric Dose for Cryptococcal Meningitis - Immunosuppressed Host

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose (patients with good cardio-renal function and well tolerated test dose): 0.25 mg/kg slow IV daily
Initial dose (severe and rapidly progressive infection): 0.3 mg/kg slow IV daily
Initial dose (patients with impaired cardio-renal function OR severe reaction to test dose): use smaller doses (e.g. 5 to 10 mg)


Induction dose: 0.7 to 1 mg/kg IV once a day - with concomitant fluconazole or flucytosine
Duration of therapy: 5 to 7 days

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Use(s): HIV-infected patients or organ transplant recipients with cryptococcal disease (meningeal and disseminated non-meningeal)

Usual Pediatric Dose for Systemic Fungal Infection

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose: 1 mg in 50 mL dextrose IV over 30 minutes

Maintenance dose: 0.25 to 1 mg/kg slow IV daily
Duration of therapy: 10 to 14 days

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Use(s): Systemic mycoses

Usual Pediatric Dose for Sporotrichosis

**VERIFY PRODUCT NAME AND DOSAGE, ESPECIALLY IF DOSE EXCEEDS 1.5 MG/KG**

Test dose: 1 mg in 20 mL dextrose, slow IV over 20 to 30 minutes, with monitoring for 2 to 4 hours afterward.
Initial dose: 1 mg in 50 mL dextrose IV over 30 minutes


Disseminated sporotrichosis: 0.7 mg/kg IV once a day

Maximum dose: 1.5 mg/kg total daily dose - UNDER NO CIRCUMSTANCES SHOULD THIS DOSE BE EXCEEDED

Comments:

Use(s): Sporotrichosis

Renal Dose Adjustments

Use with caution

Liver Dose Adjustments

Data not available

Dose Adjustments


Pregnancy: Use for disseminated or CNS disease

Precautions

US BOXED WARNING(S):


Consult WARNINGS section for additional precautions.

Dialysis

Other Comments

Administration advice:


Storage requirements:

Monitoring:

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.