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anidulafungin vs rifampin

Side-by-side comparison of anidulafungin and rifampin. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

minor Known Drug Interaction

7.4 Rifampin Administration of multiple doses of anidulafungin and rifampin to patients resulted in no significant alteration in the steady state pharmacokinetics of anidulafungin. No dosage adjustment of anidulafungin is needed when it is co-administered with rifampin [see Clinical Pharmacology (12.3) ] .

Recommendation: You do not need to adjust your dosage when these drugs are used together.

Drug Class
anidulafungin Echinocandin Antifungal
rifampin Rifamycin Antibiotic
Type
anidulafungin Prescription
rifampin Prescription
Summary
anidulafungin

Eraxis is an antifungal medicine. It treats certain Candida infections in your body.

rifampin

Rifampin is an antibiotic medicine. It fights bacteria in your body to treat infections.

What It Treats
anidulafungin

Eraxis treats candidemia and other Candida infections, like intra-abdominal abscesses and peritonitis. It can be used in adults and children 1 month and older. Eraxis also treats esophageal candidiasis (a Candida infection in the esophagus) in adults. However, Eraxis may not work as well for esophageal candidiasis, and the infection may come back.

rifampin

Rifampin treats tuberculosis (TB) and helps eliminate the bacteria that cause meningitis from your nose and throat. It is important to use rifampin only for infections that are proven or strongly suspected to be caused by bacteria. This helps to prevent bacteria from becoming resistant to the medicine.

How It Works
anidulafungin

Eraxis belongs to a class of drugs called echinocandins. It works by stopping the growth of the fungus Candida. It does this by blocking a key part of the fungal cell wall.

rifampin

Rifampin works by stopping bacteria from growing and multiplying. It does this by blocking a key enzyme that the bacteria need to make proteins. This helps your body fight off the infection.

Common Side Effects
anidulafungin
  • Low potassium levels
  • Nausea
  • Diarrhea
  • Vomiting
  • Fever
rifampin
  • Heartburn
  • Upset stomach
  • Loss of appetite
  • Nausea
  • Vomiting
FAERS Reports
anidulafungin
  • Many organs stop working right 171
  • Dangerous drop in blood pressure due to infection 127
  • Blood infection 115
  • Lung infection 94
  • Fever 90
rifampin
  • Drug Interaction 970
  • Drug Reaction With Eosinophilia And Systemic Symptoms 727
  • Nausea 628
  • Condition Aggravated 550
  • Pyrexia 541
Serious Warnings
anidulafungin

Eraxis can cause liver problems. Your doctor should check your liver function while you are taking Eraxis. Allergic reactions, including shock, can happen. Tell your doctor right away if you have any signs of an allergic reaction, like rash, hives, flushing, itching, trouble breathing, or low blood pressure. Eraxis contains fructose. If you have hereditary fructose intolerance, you should not take Eraxis.

rifampin

Rifampin can cause liver problems. Tell your doctor right away if you have yellowing of the skin or eyes, dark urine, or stomach pain. Rifampin can also cause blood problems. Tell your doctor if you have unusual bleeding or bruising.

Pregnancy
anidulafungin

Eraxis may harm your unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. It is not known if Eraxis passes into breast milk. Talk to your doctor about the risks and benefits of breastfeeding while taking Eraxis.

rifampin

Tell your doctor if you are pregnant or plan to become pregnant. Rifampin can make birth control pills less effective, so use other forms of birth control. Talk to your doctor if you are breastfeeding.

Also Compare, Nearby Drugs

How to Read This anidulafungin vs rifampin Comparison

anidulafungin is classified in the Echinocandin Antifungal drug class, while rifampin sits within the Rifamycin Antibiotic class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, anidulafungin has 597 submissions while rifampin has 3,416. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to taking these medicines together does not change the level of either drug in your system. they do not interfere with how the body handles the medication.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between anidulafungin and rifampin - always consult your physician or pharmacist first.

Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.