Amphotericin should be used only to treat serious, possibly fatal fungal infections. This medication should not be used for less severe infections in limited areas of the body (e.g., fungal infection of the mouth/esophagus, vaginal yeast infections) in patients with normal white blood cell counts.Who should not take amphotericin B injection?
See also Warning section.
This medication is used to treat a variety of serious, possibly fatal fungal infections. It works by stopping the growth of fungi.
OTHER USES: This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional.
This drug may also be used to prevent fungal infections in patients with fevers and low white blood cell (neutrophil) counts or patients with weakened immune systems (e.g., due to HIV, organ transplant, or cancer).
This medication is usually given by injection into a vein as directed by your doctor, usually given once a day or every other day. It should be injected slowly over 2 to 6 hours. Your doctor may give you a smaller dose first to test your response to the medication. Dosage is based on your medical condition, weight, response to the test dose, and response to therapy. If this medication is stopped for 7 days or longer, then it should be restarted at the lowest dose and slowly increased.
If you are giving this medication to yourself at home, learn all preparation and usage instructions from your health care professional. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely.
It may be necessary to continue this medication for several weeks to several months in order to treat certain infections. Stopping the medication too early may result in a return of the infection.
Tell your doctor if your condition persists or worsens.
Fever, shaking, chills, flushing, loss of appetite, dizziness, nausea, vomiting, headache, shortness of breath, or fast breathing may occur 1 to 3 hours after the infusion is started. In some cases, other medications (e.g., acetaminophen, diphenhydramine, corticosteroids such as hydrocortisone) may be necessary to prevent or relieve these side effects. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: swelling/pain at injection site, muscle/joint pain, unusual tiredness, weakness, muscle cramping, change in the amount of urine, painful urination, numbness/tingling of arms/legs, vision changes, hearing changes (e.g., ringing in the ears), dark urine, severe stomach/abdominal pain, yellowing eyes/skin, swelling ankles/feet, fast/slow/irregular heartbeat, cold sweats, blue lips, easy bruising/bleeding, other signs of infection (e.g., fever, persistent sore throat), mental/mood changes, seizures, black stools, vomit that looks like coffee grounds.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Before using amphotericin, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: white blood cell (leukocyte) transfusions, heart disease (e.g., irregular heartbeat, congestive heart failure), liver disease, kidney disease.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Some products that may interact with this drug include: anti-cancer drugs (e.g., mechlorethamine, nitrogen mustard), azole antifungals (e.g., ketoconazole, itraconazole), cidofovir, digoxin, flucytosine, medications that affect the kidneys (e.g., cyclosporine, aminoglycosides such as gentamicin, pentamidine, tacrolimus), muscle relaxants (e.g., tubocurarine), zidovudine.
If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: dizziness, fainting, slow heartbeat, trouble breathing.
Laboratory and/or medical tests (e.g., kidney/liver function tests, potassium/magnesium levels, complete blood counts) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.
For the best possible benefit, it is important to receive each scheduled dose of this medication as directed. If you miss a dose, contact your doctor or pharmacist immediately to establish a new dosing schedule. Do not double the dose to catch up.
Consult the product instructions and your pharmacist for storage details. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.
Information last revised March 2013. Copyright(c) 2013 First Databank, Inc.
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