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Drug interactions

Glipizide + Saquinavir

Severity: Moderate

Glipizide and Saquinavir: moderate interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Protease inhibitors such as saquinavir can cause insulin resistance and hyperglycemia, which may counteract glipizide. Glycemic control may deteriorate and require therapy adjustment.

What this interaction means in plain words

Glipizide and Saquinavir can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Evidence level: Low

Why it happens

Protease inhibitor-associated insulin resistance and impaired glucose handling opposes the effect of glipizide.

What to do

Monitor blood glucose and HbA1c during saquinavir therapy and increase the antidiabetic regimen if control worsens.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Glipizide with Saquinavir?

MediHelp rates the interaction as moderate. Glipizide and Saquinavir can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Protease inhibitors such as saquinavir can cause insulin resistance and hyperglycemia, which may counteract glipizide. Glycemic control may deteriorate and require therapy adjustment.

How serious is the interaction between Glipizide and Saquinavir?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood glucose and HbA1c during saquinavir therapy and increase the antidiabetic regimen if control worsens.

What other medicines interact with Glipizide?

MediHelp also lists interactions of Glipizide with, for example, Disopyramide, Fluconazole, Insulin degludec-liraglutide. The full list is on the Glipizide page.

Full monographs, dosing and an interaction checker in the MediHelp app

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