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What the FDA labels say about taking them together

Nateglinide and voriconazole

Nateglinide's FDA label of February 24, 2025 names voriconazole in its drug interactions section; the voriconazole labels PlainMeds reads (3) do not name nateglinide. The nateglinide label: “Drugs That May Increase the Blood-Glucose-Lowering Effect of Nateglinide and Susceptibility to Hypoglycemia Drugs: Nonsteroidal anti-inflammatory drugs (NSAIDs), salicylates, monoamine oxidase inhibitors, non-selective …”

Check it at the source: the nateglinide FDA label on DailyMed (effective February 24, 2025, Strides Pharma Science Limited); the voriconazole FDA label on DailyMed (effective February 26, 2026, Roerig).

What does the nateglinide label say about voriconazole?

Nateglinide label, drug interactions

Drugs That May Increase the Blood-Glucose-Lowering Effect of Nateglinide and Susceptibility to Hypoglycemia Drugs: Nonsteroidal anti-inflammatory drugs (NSAIDs), salicylates, monoamine oxidase inhibitors, non-selective beta-adrenergic-blocking agents, anabolic hormones (e.g., methandrostenolone), guanethidine, gymnema sylvestre, glucomannan, thioctic acid, and inhibitors of CYP2C9 (e.g., amiodarone, fluconazole, voriconazole, sulfinpyrazone) or in patients known to be poor metabolizers of CYP2C9 substrates, alcohol. Intervention: Dose reductions and increased frequency of glucose monitoring may be required when nateglinide is coadministered with these drugs.

Source: FDA drug label (Nateglinide), Strides Pharma Science Limited, effective February 24, 2025 (SPL set 0ccf9b07-3c21-482d-abeb-a06ceb482c7b), via openFDA; the full label on DailyMed

What does the voriconazole label say about nateglinide?

Voriconazole's label (effective February 26, 2026) and its 2 other brand-application labels do not name nateglinide in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (VFEND), NDA021630 (Pf Prism Cv), as published by Roerig, effective February 26, 2026 (SPL set ce3ef5cf-3087-4d92-9d94-9eb8287228db), via openFDA; the full label on DailyMed

These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.

Both medicines on the record

9Nateglinide generic labelers
31Voriconazole generic labelers
NateglinideVoriconazole
Labeled forType 2 diabetesFungal infections
Boxed warningNoNo
Pharmacy cost (NADAC)$0.179 per tablet 60 mg tablet$1.88 per tablet 200 mg tablet
Shortage nowNo current entryA presentation being discontinued

Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)

What next?