Drug interactions
Ethinylestradiol + Glipizide-metformin
Severity: Moderate
Ethinylestradiol and Glipizide-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
Ethinylestradiol-containing products can reduce glucose tolerance and insulin sensitivity, potentially weakening the effect of metformin and glipizide. The effect is generally small with low-dose products.
What this interaction means in plain words
Ethinylestradiol and Glipizide-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.
Why it happens
Estrogen exposure may cause insulin resistance and altered hepatic glucose metabolism, opposing antidiabetic drugs.
What to do
Monitor glucose and HbA1c after starting or stopping ethinylestradiol and adjust antidiabetic doses if needed.
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 Glipizide-metformin
Frequently asked questions
Can I take Ethinylestradiol with Glipizide-metformin?
MediHelp rates the interaction as moderate. Ethinylestradiol and Glipizide-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. Ethinylestradiol-containing products can reduce glucose tolerance and insulin sensitivity, potentially weakening the effect of metformin and glipizide. The effect is generally small with low-dose products.
How serious is the interaction between Ethinylestradiol and Glipizide-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 ethinylestradiol and adjust antidiabetic doses if needed.
What other medicines interact with Glipizide-metformin?
MediHelp also lists interactions of Glipizide-metformin with, for example, Contrast media, Diatrizoate meglumine / diatrizoate, Diatrizoate. The full list is on the Glipizide-metformin page.
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