Skip to content

Drug interactions

Fenfluramine + Insulin glargine-lixisenatide

Severity: Moderate

Fenfluramine and Insulin glargine-lixisenatide: 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

Fenfluramine has been reported to improve peripheral glucose uptake and may lower blood glucose. In patients on insulin glargine with lixisenatide this can increase the risk of hypoglycemia.

What this interaction means in plain words

Fenfluramine and Insulin glargine-lixisenatide 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.

Fenfluramine belongs to Central Nervous System; Insulin glargine-lixisenatide belongs to Endocrine.

Evidence level: Low

Why it happens

Additive glucose-lowering effect through increased peripheral glucose utilization.

What to do

Monitor blood glucose more frequently when starting or stopping fenfluramine, and reduce the insulin dose if hypoglycemia occurs.

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 Fenfluramine and Insulin glargine-lixisenatide, 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 14 days on the web. No card needed.

Frequently asked questions

Can I take Fenfluramine with Insulin glargine-lixisenatide?

MediHelp rates the interaction as moderate. Fenfluramine and Insulin glargine-lixisenatide 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. Fenfluramine has been reported to improve peripheral glucose uptake and may lower blood glucose. In patients on insulin glargine with lixisenatide this can increase the risk of hypoglycemia.

How serious is the interaction between Fenfluramine and Insulin glargine-lixisenatide?

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 more frequently when starting or stopping fenfluramine, and reduce the insulin dose if hypoglycemia occurs.

What other medicines interact with Insulin glargine-lixisenatide?

MediHelp also lists interactions of Insulin glargine-lixisenatide with, for example, Albiglutide, Chlorpropamide, Dulaglutide. The full list is on the Insulin glargine-lixisenatide 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