Drug interactions
Miglitol + Nelfinavir
Severity: Moderate
Miglitol and Nelfinavir: 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
Nelfinavir can cause insulin resistance and hyperglycemia, which may reduce the effectiveness of miglitol in diabetic patients. Glycemic control may worsen after starting therapy.
What this interaction means in plain words
Miglitol and Nelfinavir 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.
Miglitol belongs to Endocrine; Nelfinavir belongs to Anti Virals.
Why it happens
Protease inhibitor-induced insulin resistance opposes the antihyperglycemic effect (pharmacodynamic antagonism).
What to do
Monitor blood glucose and HbA1c after starting or changing nelfinavir. Intensify antidiabetic therapy if control worsens.
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 Miglitol
- Miglitol + Pramlintide Major
- Aripiprazole + Miglitol Moderate
- Asenapine + Miglitol Moderate
- Chlorthalidone + Miglitol Moderate
- Clozapine + Miglitol Moderate
- Cortisone + Miglitol Moderate
Other interactions of Nelfinavir
- Alfuzosin + Nelfinavir Contraindicated
- Avanafil + Nelfinavir Contraindicated
- Dronedarone + Nelfinavir Contraindicated
- Eletriptan + Nelfinavir Contraindicated
- Ergotamine + Nelfinavir Contraindicated
- Flibanserin + Nelfinavir Contraindicated
Frequently asked questions
Can I take Miglitol with Nelfinavir?
MediHelp rates the interaction as moderate. Miglitol and Nelfinavir 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. Nelfinavir can cause insulin resistance and hyperglycemia, which may reduce the effectiveness of miglitol in diabetic patients. Glycemic control may worsen after starting therapy.
How serious is the interaction between Miglitol and Nelfinavir?
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 and HbA1c after starting or changing nelfinavir. Intensify antidiabetic therapy if control worsens.
What other medicines interact with Miglitol?
MediHelp also lists interactions of Miglitol with, for example, Pramlintide, Aripiprazole, Asenapine. The full list is on the Miglitol page.
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