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Drug interactions

Glimepiride + Insulin isophane protamine human

Severity: Moderate

Glimepiride and Insulin isophane protamine human: 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

Glimepiride and NPH insulin both lower glucose, so combined use increases the risk of hypoglycemia, particularly in older adults or those with reduced renal function or irregular meals.

What this interaction means in plain words

Glimepiride and Insulin isophane protamine human 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.

Glimepiride belongs to Endocrine; Insulin isophane protamine human belongs to Endocrine.

Evidence level: High

Why it happens

Additive glucose lowering from sulfonylurea-stimulated insulin secretion plus exogenous insulin.

What to do

Monitor glucose closely and lower the sulfonylurea or insulin dose when initiating the combination. Counsel patients on hypoglycemia recognition and treatment.

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 Glimepiride with Insulin isophane protamine human?

MediHelp rates the interaction as moderate. Glimepiride and Insulin isophane protamine human 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. Glimepiride and NPH insulin both lower glucose, so combined use increases the risk of hypoglycemia, particularly in older adults or those with reduced renal function or irregular meals.

How serious is the interaction between Glimepiride and Insulin isophane protamine human?

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 glucose closely and lower the sulfonylurea or insulin dose when initiating the combination. Counsel patients on hypoglycemia recognition and treatment.

What other medicines interact with Insulin isophane protamine human?

MediHelp also lists interactions of Insulin isophane protamine human with, for example, Ethanol, Pioglitazone, Rosiglitazone. The full list is on the Insulin isophane protamine human page.

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