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Drug interactions

Chlorpropamide + Deflazacort

Severity: Moderate

Chlorpropamide and Deflazacort: 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

Deflazacort is a glucocorticoid that can raise blood glucose and so oppose the effect of chlorpropamide. Glycemic control may worsen, especially with prolonged or higher-dose use.

What this interaction means in plain words

Chlorpropamide and Deflazacort 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.

Chlorpropamide belongs to Endocrine; Deflazacort belongs to Miscellaneous.

Evidence level: Moderate

Why it happens

Glucocorticoid-induced insulin resistance and increased hepatic glucose output antagonize sulfonylurea action.

What to do

Monitor blood glucose during corticosteroid therapy and increase chlorpropamide or adjust therapy as needed. Reduce the antidiabetic dose again when the steroid is withdrawn.

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 Chlorpropamide with Deflazacort?

MediHelp rates the interaction as moderate. Chlorpropamide and Deflazacort 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. Deflazacort is a glucocorticoid that can raise blood glucose and so oppose the effect of chlorpropamide. Glycemic control may worsen, especially with prolonged or higher-dose use.

How serious is the interaction between Chlorpropamide and Deflazacort?

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 during corticosteroid therapy and increase chlorpropamide or adjust therapy as needed. Reduce the antidiabetic dose again when the steroid is withdrawn.

What other medicines interact with Chlorpropamide?

MediHelp also lists interactions of Chlorpropamide with, for example, Ethanol, Exenatide, Insulin degludec-insulin aspart. The full list is on the Chlorpropamide page.

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

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