Drug interactions
Drospirenone + Fenbufen
Severity: Moderate
Drospirenone and Fenbufen: 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
NSAIDs like fenbufen can reduce renal potassium excretion, adding to drospirenone's potassium-retaining effect. Hyperkalemia risk is higher with renal impairment or other potassium-raising drugs.
What this interaction means in plain words
Drospirenone and Fenbufen 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
NSAID-induced prostaglandin inhibition and hyporeninemic hypoaldosteronism, additive to drospirenone's antimineralocorticoid effect.
What to do
Check serum potassium during the first cycle of long-term combined use. Avoid in patients with renal impairment.
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 Drospirenone
Frequently asked questions
Can I take Drospirenone with Fenbufen?
MediHelp rates the interaction as moderate. Drospirenone and Fenbufen 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. NSAIDs like fenbufen can reduce renal potassium excretion, adding to drospirenone's potassium-retaining effect. Hyperkalemia risk is higher with renal impairment or other potassium-raising drugs.
How serious is the interaction between Drospirenone and Fenbufen?
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 serum potassium during the first cycle of long-term combined use. Avoid in patients with renal impairment.
What other medicines interact with Drospirenone?
MediHelp also lists interactions of Drospirenone with, for example, Belzutifan, Bosentan, Carbamazepine. The full list is on the Drospirenone page.
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