Drug interactions
Methyclothiazide + Sitagliptin
Severity: Minor
Methyclothiazide and Sitagliptin: minor 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
Thiazide diuretics can impair glucose tolerance, mainly at higher doses, and may modestly raise blood glucose. This may slightly blunt the effect of sitagliptin in patients with diabetes.
What this interaction means in plain words
Methyclothiazide and Sitagliptin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Pharmacodynamic antagonism: thiazide-related hypokalemia and reduced insulin secretion and sensitivity can raise glucose.
What to do
Monitor blood glucose when starting or adjusting the thiazide, and correct potassium depletion. Adjust antidiabetic therapy only if glycemic control worsens.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Methyclothiazide and Sitagliptin, 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 Sitagliptin
- Albiglutide + Sitagliptin Moderate
- Amlodipine-benazepril + Sitagliptin Moderate
- Aripiprazole + Sitagliptin Moderate
- Asenapine + Sitagliptin Moderate
- Benazepril + Sitagliptin Moderate
- Captopril-hydrochlorothiazide + Sitagliptin Moderate
Frequently asked questions
Can I take Methyclothiazide with Sitagliptin?
MediHelp rates the interaction as minor. Methyclothiazide and Sitagliptin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Thiazide diuretics can impair glucose tolerance, mainly at higher doses, and may modestly raise blood glucose. This may slightly blunt the effect of sitagliptin in patients with diabetes.
How serious is the interaction between Methyclothiazide and Sitagliptin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood glucose when starting or adjusting the thiazide, and correct potassium depletion. Adjust antidiabetic therapy only if glycemic control worsens.
What other medicines interact with Sitagliptin?
MediHelp also lists interactions of Sitagliptin with, for example, Albiglutide, Amlodipine-benazepril, Aripiprazole. The full list is on the 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.
