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Anidulafungin significantly differs from other antifungals in that it undergoes chemical degradation to inactive forms at body pH and temperature. Because it does not rely on enzymatic degradation or hepatic or renal excretion, the drug is safe to use in patients with any degree of hepatic or renal impairment.

There is no evidence anidulafungin is metabolized by the liver. Research has shown this specific drug undergoes slow chemical hydrolysis to an open-ring peptide which lacks antifungal activity. The half-life of the drug is 27 hours. Thirty percent is excreted in the feces (10% as unchanged drug). Less than 1% is excreted in the urine