Skip to content

Drug interactions

Deflazacort + Insulin lispro

Severity: Moderate

Deflazacort and Insulin lispro: 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 raises blood glucose and can lower serum potassium, which opposes the glucose-lowering effect of insulin. Insulin also shifts potassium into cells, so the combination may add to hypokalemia and leave glycemic control unpredictable.

What this interaction means in plain words

Deflazacort and Insulin lispro 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 belongs to Miscellaneous; Insulin lispro belongs to Endocrine.

Evidence level: Moderate

Why it happens

Glucocorticoid-induced insulin resistance and mineralocorticoid-related potassium loss, combined with insulin-driven cellular potassium uptake.

What to do

Monitor blood glucose and serum potassium when starting, changing or stopping deflazacort, and adjust the insulin dose as needed. Replace potassium if hypokalemia develops.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Deflazacort and Insulin lispro, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Deflazacort with Insulin lispro?

MediHelp rates the interaction as moderate. Deflazacort and Insulin lispro 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 raises blood glucose and can lower serum potassium, which opposes the glucose-lowering effect of insulin. Insulin also shifts potassium into cells, so the combination may add to hypokalemia and leave glycemic control unpredictable.

How serious is the interaction between Deflazacort and Insulin lispro?

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 serum potassium when starting, changing or stopping deflazacort, and adjust the insulin dose as needed. Replace potassium if hypokalemia develops.

What other medicines interact with Insulin lispro?

MediHelp also lists interactions of Insulin lispro with, for example, Alogliptin-pioglitazone, Ethanol, Metreleptin. The full list is on the Insulin lispro page.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in