Drug interactions
Doxycycline + Sparsentan
Severity: Minor
Doxycycline and Sparsentan: minor 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
Sparsentan is a CYP3A4 substrate, but doxycycline is not a clinically meaningful CYP3A4 inhibitor. A relevant increase in sparsentan exposure is not expected.
What this interaction means in plain words
Doxycycline and Sparsentan have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Doxycycline belongs to Anti Bacterial; Sparsentan belongs to Genitourinary.
Why it happens
Theoretical CYP3A4 inhibition by doxycycline that is not established clinically.
What to do
No dose change is needed. Continue routine monitoring of blood pressure, potassium, and liver and kidney function for sparsentan.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Doxycycline
- Acitretin + Doxycycline Contraindicated
- Aminolevulinic acid + Doxycycline Major
- Cholera vaccine + Doxycycline Major
- Doxycycline + Isotretinoin Major
- Doxycycline + Methoxyflurane Major
- Doxycycline + Microbiota Major
Other interactions of Sparsentan
- Aliskiren + Sparsentan Contraindicated
- Amlodipine-hydrochlorothiazide-valsartan + Sparsentan Contraindicated
- Amlodipine-olmesartan-hydrochlorothiazide + Sparsentan Contraindicated
- Amlodipine-olmesartan + Sparsentan Contraindicated
- Amlodipine-valsartan + Sparsentan Contraindicated
- Azilsartan-chlorthalidone + Sparsentan Contraindicated
Frequently asked questions
Can I take Doxycycline with Sparsentan?
MediHelp rates the interaction as minor. Doxycycline and Sparsentan have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Sparsentan is a CYP3A4 substrate, but doxycycline is not a clinically meaningful CYP3A4 inhibitor. A relevant increase in sparsentan exposure is not expected.
How serious is the interaction between Doxycycline and Sparsentan?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is needed. Continue routine monitoring of blood pressure, potassium, and liver and kidney function for sparsentan.
What other medicines interact with Doxycycline?
MediHelp also lists interactions of Doxycycline with, for example, Acitretin, Aminolevulinic acid, Cholera vaccine. The full list is on the Doxycycline page.
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