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Amphotericin B (Amphotericin B) - Side Effects and Adverse Reactions



Although some patients may tolerate full intravenous doses of amphotericin B without difficulty, most will exhibit some intolerance, often at less than the full therapeutic dose.

Tolerance may be improved by treatment with aspirin, antipyretics (e.g., acetaminophen), antihistamines, or antiemetics. Meperidine (25 to 50 mg IV) has been shown in some patients to decrease the duration of shaking chills and fever that may accompany the infusion of amphotericin B.

Administration of amphotericin B on alternate days may decrease anorexia and phlebitis.

Intravenous administration of small doses of adrenal corticosteroids just prior to or during the amphotericin B infusion may help decrease febrile reactions. Dosage and duration of such corticosteroid therapy should be kept to a minimum (see PRECAUTIONS: Drug Interactions).

Addition of heparin (1000 units per infusion), and the use of a pediatric scalp-vein needle may lessen the incidence of thrombophlebitis. Extravasation may cause chemical irritation.

The adverse reactions most commonly observed are:

General (body as a whole): fever (sometimes accompanied by shaking chills usually occurring within 15 to 20 minutes after initiation of treatment); malaise; weight loss.

Cardiopulmonary: hypotension; tachypnea.

Gastrointestinal: anorexia; nausea; vomiting; diarrhea; dyspepsia; cramping epigastric pain.

Hematologic: normochromic, normocytic anemia.

Local: pain at the injection site with or without phlebitis or thrombophlebitis.

Musculoskeletal: generalized pain, including muscle and joint pains.

Neurologic: headache.

Renal:  decreased renal function and renal function abnormalities including: azotemia, hypokalemia, hyposthenuria, renal tubular acidosis; and nephrocalcinosis. These usually improve with interruption of therapy. However, some permanent impairment often occurs, especially in those patients receiving large amounts (over 5 g) of amphotericin B or receiving other nephrotoxic agents. In some patients hydration and sodium repletion prior to amphotericin B administration may reduce the risk of developing nephrotoxicity. Supplemental alkali medication may decrease renal tubular acidosis.

The following adverse reactions have also been reported:

General (body as a whole): flushing.

Allergic: anaphylactoid and other allergic reactions; bronchospasm; wheezing.

Cardiopulmonary: cardiac arrest; shock; cardiac failure; pulmonary edema; hypersensitivity pneumonitis; arrhythmias, including ventricular fibrillation; dyspnea; hypertension.

Dermatologic: rash, in particular maculopapular; pruritus. Skin exfoliation, toxic epidermal necrolysis, and Stevens-Johnson syndrome have been reported during post-marketing surveillance.

Gastrointestinal: acute liver failure; hepatitis; jaundice; hemorrhagic gastroenteritis; melena.

Hematologic: agranulocytosis; coagulation defects; thrombocytopenia; leukopenia; eosinophilia; leukocytosis.

Neurologic: convulsions; hearing loss; tinnitus; transient vertigo; visual impairment; diplopia; peripheral neuropathy; encephalopathy (see PRECAUTIONS); other neurologic symptoms.

Renal: acute renal failure; anuria; oliguria. Nephrogenic diabetes insipidus has been reported during post-marketing surveillance.

Altered Laboratory Findings

Serum Electrolytes: Hypomagnesemia; hypo- and hyperkalemia; hypocalcemia.

Liver Function Tests: Elevations of AST, ALT, GGT, bilirubin, and alkaline phosphatase.

Renal Function Tests: Elevations of BUN and serum creatinine.


Below is a sample of reports where side effects / adverse reactions may be related to Amphotericin B. The information is not vetted and should not be considered as verified clinical evidence.

Possible Amphotericin B side effects / adverse reactions in 48 year old male

Reported by a physician from Germany on 2011-10-03

Patient: 48 year old male

Reactions: Overdose, Vomiting, Medication Error, Anaemia, Haemolysis, Renal Failure Acute

Suspect drug(s):
Amphotericin B
    Indication: Cryptococcosis
    Start date: 2011-08-13

    Start date: 2011-08-08

Possible Amphotericin B side effects / adverse reactions in 37 year old female

Reported by a health professional (non-physician/pharmacist) from China on 2011-10-06

Patient: 37 year old female

Reactions: Diplopia, Drug Effect Decreased, Empty Sella Syndrome, Colitis Ulcerative, Disease Recurrence, Cryptococcus Test Positive, Lacunar Infarction

Adverse event resulted in: hospitalization

Suspect drug(s):
Amphotericin B
    Indication: Cryptococcosis

    Indication: Colitis Ulcerative

    Indication: Cryptococcosis

Other drugs received by patient: Sulfasalazine; Prednisone

Possible Amphotericin B side effects / adverse reactions in 49 year old female

Reported by a health professional (non-physician/pharmacist) from China on 2011-10-06

Patient: 49 year old female

Reactions: Refusal of Treatment by Patient, Disease Recurrence, Colitis Ulcerative

Adverse event resulted in: hospitalization

Suspect drug(s):
    Indication: Cryptococcosis

Amphotericin B
    Indication: Cryptococcosis

Other drugs received by patient: Mesalamine; Empirical Antibiotic Therapy; Infliximab; Prednisone; Azathioprine

See index of all Amphotericin B side effect reports >>

Drug label data at the top of this Page last updated: 2011-11-22

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