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Drug interactions

Ethinyl estradiol-drospirenone + Succinylcholine

Severity: Moderate

Ethinyl estradiol-drospirenone and Succinylcholine: 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

Succinylcholine can cause an acute rise in serum potassium, which may be dangerous in patients with already elevated potassium. Drospirenone could add to potassium retention, though the contribution is small in healthy patients.

What this interaction means in plain words

Ethinyl estradiol-drospirenone and Succinylcholine 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.

Ethinyl estradiol-drospirenone belongs to Endocrine; Succinylcholine belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Succinylcholine causes potassium efflux from muscle, adding to drospirenone-related renal potassium retention.

What to do

Check baseline serum potassium before elective surgery in patients with renal impairment or other hyperkalemia risks. Choose a non-depolarizing neuromuscular blocker if potassium is elevated.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Ethinyl estradiol-drospirenone with Succinylcholine?

MediHelp rates the interaction as moderate. Ethinyl estradiol-drospirenone and Succinylcholine 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. Succinylcholine can cause an acute rise in serum potassium, which may be dangerous in patients with already elevated potassium. Drospirenone could add to potassium retention, though the contribution is small in healthy patients.

How serious is the interaction between Ethinyl estradiol-drospirenone and Succinylcholine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check baseline serum potassium before elective surgery in patients with renal impairment or other hyperkalemia risks. Choose a non-depolarizing neuromuscular blocker if potassium is elevated.

What other medicines interact with Ethinyl estradiol-drospirenone?

MediHelp also lists interactions of Ethinyl estradiol-drospirenone with, for example, Fezolinetant, Ombitasvir / paritaprevir / ritonavir, Ombitasvir / paritaprevir / ritonavir and dasabuvir. The full list is on the Ethinyl estradiol-drospirenone page.

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