Belzutifan is an inhibitor of the HIF-2 prolyl hydroxylase. It’s used to treat kidney cancer that’s linked to something called VHL. It’s meant to cut down on the signals that make tumors really low on oxygen.
You can get Belzutifan in 40 mg pills. They usually recommend you take 120 mg every day. One bottle holds 90 tablets, which should last you about a month if you’re taking it as suggested.