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Drug interactions

Fluoxetine + Insulin neutral human-insulin isophane protamine human

Severity: Moderate

Fluoxetine and Insulin neutral human-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

Fluoxetine may enhance the glucose-lowering effect of insulin and has been associated with hypoglycemia in diabetic patients. Glucose control may become less predictable when it is started or stopped.

What this interaction means in plain words

Fluoxetine and Insulin neutral human-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.

Fluoxetine belongs to Central Nervous System; Insulin neutral human-insulin isophane protamine human belongs to Endocrine.

Evidence level: Low

Why it happens

Possibly improved insulin sensitivity and altered glucose regulation by SSRIs; mechanism not fully established.

What to do

Monitor glucose more often when starting, changing or stopping fluoxetine and reduce the insulin dose if hypoglycemia 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.

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Frequently asked questions

Can I take Fluoxetine with Insulin neutral human-insulin isophane protamine human?

MediHelp rates the interaction as moderate. Fluoxetine and Insulin neutral human-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. Fluoxetine may enhance the glucose-lowering effect of insulin and has been associated with hypoglycemia in diabetic patients. Glucose control may become less predictable when it is started or stopped.

How serious is the interaction between Fluoxetine and Insulin neutral human-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 more often when starting, changing or stopping fluoxetine and reduce the insulin dose if hypoglycemia develops.

What other medicines interact with Insulin neutral human-insulin isophane protamine human?

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

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