Skip to content

Drug interactions

Metformin-sitagliptin + Somatropin

Severity: Moderate

Metformin-sitagliptin and Somatropin: 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

Growth hormone reduces insulin sensitivity and may raise blood glucose, reducing the effectiveness of metformin and sitagliptin. Diabetic patients may need higher antidiabetic doses after somatropin is started.

What this interaction means in plain words

Metformin-sitagliptin and Somatropin 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.

Metformin-sitagliptin belongs to Endocrine; Somatropin belongs to Endocrine.

Evidence level: Moderate

Why it happens

Growth hormone induces insulin resistance and increases hepatic glucose output, opposing antidiabetic effects.

What to do

Monitor blood glucose frequently after starting or changing somatropin and adjust antidiabetic therapy accordingly.

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 Metformin-sitagliptin and Somatropin, 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 Metformin-sitagliptin with Somatropin?

MediHelp rates the interaction as moderate. Metformin-sitagliptin and Somatropin 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. Growth hormone reduces insulin sensitivity and may raise blood glucose, reducing the effectiveness of metformin and sitagliptin. Diabetic patients may need higher antidiabetic doses after somatropin is started.

How serious is the interaction between Metformin-sitagliptin and Somatropin?

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 frequently after starting or changing somatropin and adjust antidiabetic therapy accordingly.

What other medicines interact with Metformin-sitagliptin?

MediHelp also lists interactions of Metformin-sitagliptin with, for example, Clozapine, Contrast media, Diatrizoate meglumine / diatrizoate. The full list is on the Metformin-sitagliptin 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