Drug interactions
Estradiol + Insulin degludec / insulin aspart
Severity: Moderate
Estradiol and Insulin degludec / insulin aspart: 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
Estrogens can impair glucose tolerance and insulin sensitivity in some patients, which may reduce the glucose-lowering effect of insulin. The effect is variable and usually small with transdermal or low-dose therapy.
What this interaction means in plain words
Estradiol and Insulin degludec / insulin aspart 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
Pharmacodynamic antagonism through estrogen-related changes in insulin sensitivity and glucose metabolism.
What to do
Monitor blood glucose when starting, stopping or changing estradiol dose and adjust insulin as 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 Estradiol
- Anastrozole + Estradiol Contraindicated
- Estradiol + Fezolinetant Contraindicated
- Estradiol + Ospemifene Contraindicated
- Antithrombin alfa + Estradiol Major
- Antithrombin iii + Estradiol Major
- Estradiol + Exemestane Major
Frequently asked questions
Can I take Estradiol with Insulin degludec / insulin aspart?
MediHelp rates the interaction as moderate. Estradiol and Insulin degludec / insulin aspart 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. Estrogens can impair glucose tolerance and insulin sensitivity in some patients, which may reduce the glucose-lowering effect of insulin. The effect is variable and usually small with transdermal or low-dose therapy.
How serious is the interaction between Estradiol and Insulin degludec / insulin aspart?
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 when starting, stopping or changing estradiol dose and adjust insulin as needed.
What other medicines interact with Estradiol?
MediHelp also lists interactions of Estradiol with, for example, Anastrozole, Fezolinetant, Ospemifene. The full list is on the Estradiol page.
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