Drug interactions
Insulin nph + Telmisartan
Severity: Moderate
Insulin nph and Telmisartan: 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
Telmisartan can enhance insulin sensitivity and thereby increase the glucose-lowering effect of NPH insulin. Hypoglycemia is possible, particularly at the start of combined treatment.
What this interaction means in plain words
Insulin nph and Telmisartan 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.
Why it happens
Additive pharmacodynamic effect, probably through improved insulin sensitivity with ARBs.
What to do
Increase blood glucose monitoring when telmisartan is started or adjusted. Reduce the NPH insulin dose if glucose runs low.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Insulin nph and Telmisartan, 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.
Other interactions of Telmisartan
- Aliskiren + Telmisartan Contraindicated
- Sparsentan + Telmisartan Contraindicated
- Amifostine + Telmisartan Major
- Amiloride + Telmisartan Major
- Amlodipine-benazepril + Telmisartan Major
- Amlodipine-hydrochlorothiazide-valsartan + Telmisartan Major
Frequently asked questions
Can I take Insulin nph with Telmisartan?
MediHelp rates the interaction as moderate. Insulin nph and Telmisartan 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. Telmisartan can enhance insulin sensitivity and thereby increase the glucose-lowering effect of NPH insulin. Hypoglycemia is possible, particularly at the start of combined treatment.
How serious is the interaction between Insulin nph and Telmisartan?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Increase blood glucose monitoring when telmisartan is started or adjusted. Reduce the NPH insulin dose if glucose runs low.
What other medicines interact with Telmisartan?
MediHelp also lists interactions of Telmisartan with, for example, Aliskiren, Sparsentan, Amifostine. The full list is on the Telmisartan 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.
