Favipiravir is not metabolized by cytochrome P-450 (CYP), mostly metabolized by aldehyde oxidase (AO), and partly metabolized by xanthine oxidase (XO). The drug inhibits AO and CYP2C8, but does not induce CYP. Precautions for co-administration (See "Pharmacology: Pharmacokinetics under Actions"). (See Table 6.)
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