Drug interactions
Metformin-sitagliptin + Pentamidine
Severity: Moderate
Metformin-sitagliptin and Pentamidine: 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
Pentamidine can cause pancreatic beta-cell toxicity, leading to hypoglycemia followed by hyperglycemia or diabetes. This can disrupt glucose control in patients on antidiabetic therapy.
What this interaction means in plain words
Metformin-sitagliptin and Pentamidine 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; Pentamidine belongs to Anti Parasitic.
Why it happens
Direct beta-cell toxicity causes initial insulin release then insulin deficiency, producing unpredictable glucose changes.
What to do
Monitor blood glucose during and after pentamidine therapy. Adjust antidiabetic therapy to the observed values.
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?
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Other interactions of Metformin-sitagliptin
Other interactions of Pentamidine
- Clomipramine + Pentamidine Contraindicated
- Desipramine + Pentamidine Contraindicated
- Dronedarone + Pentamidine Contraindicated
- Moxifloxacin + Pentamidine Contraindicated
- Nortriptyline + Pentamidine Contraindicated
- Pentamidine + Pimozide Contraindicated
Frequently asked questions
Can I take Metformin-sitagliptin with Pentamidine?
MediHelp rates the interaction as moderate. Metformin-sitagliptin and Pentamidine 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. Pentamidine can cause pancreatic beta-cell toxicity, leading to hypoglycemia followed by hyperglycemia or diabetes. This can disrupt glucose control in patients on antidiabetic therapy.
How serious is the interaction between Metformin-sitagliptin and Pentamidine?
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 during and after pentamidine therapy. Adjust antidiabetic therapy to the observed values.
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.
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