Drug interactions
Primidone + Saxagliptin-metformin
Severity: Moderate
Primidone and Saxagliptin-metformin: 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
Primidone is metabolized to phenobarbital and induces CYP3A4, which may lower saxagliptin and active metabolite exposure. This could reduce glucose control, though the effect is likely modest.
What this interaction means in plain words
Primidone and Saxagliptin-metformin 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.
Primidone belongs to Central Nervous System; Saxagliptin-metformin belongs to Endocrine.
Why it happens
CYP3A4 induction by primidone and its metabolite phenobarbital increases saxagliptin metabolism.
What to do
Monitor glucose and HbA1c after starting or stopping primidone. Consider alternative antidiabetic therapy if control deteriorates.
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 Saxagliptin-metformin
Other interactions of Primidone
- Lorlatinib + Primidone Contraindicated
- Lurasidone + Primidone Contraindicated
- Primidone + Ranolazine Contraindicated
- Primidone + Sofosbuvir-velpatasvir-voxilaprevir Contraindicated
- Primidone + Voriconazole Contraindicated
- Abiraterone + Primidone Major
Frequently asked questions
Can I take Primidone with Saxagliptin-metformin?
MediHelp rates the interaction as moderate. Primidone and Saxagliptin-metformin 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. Primidone is metabolized to phenobarbital and induces CYP3A4, which may lower saxagliptin and active metabolite exposure. This could reduce glucose control, though the effect is likely modest.
How serious is the interaction between Primidone and Saxagliptin-metformin?
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 glucose and HbA1c after starting or stopping primidone. Consider alternative antidiabetic therapy if control deteriorates.
What other medicines interact with Saxagliptin-metformin?
MediHelp also lists interactions of Saxagliptin-metformin with, for example, Atazanavir, Clozapine, Contrast media. The full list is on the Saxagliptin-metformin page.
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