Drug interactions
Polycarbophil + Tetracycline
Severity: Moderate
Polycarbophil and Tetracycline: 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
Calcium polycarbophil can chelate tetracycline in the gut and reduce its absorption. This may lower antibiotic exposure and efficacy.
What this interaction means in plain words
Polycarbophil and Tetracycline 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.
Polycarbophil belongs to Gastrointestinal Tract; Tetracycline belongs to Anti Bacterial.
Why it happens
Chelation and adsorption of tetracycline by polycarbophil reduce gastrointestinal absorption.
What to do
Give tetracycline at least 2 hours before or 4 to 6 hours after polycarbophil. Monitor clinical response.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Polycarbophil and Tetracycline, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Polycarbophil
- Demeclocycline + Polycarbophil Moderate
- Doxycycline + Polycarbophil Moderate
- Minocycline + Polycarbophil Moderate
- Oxytetracycline + Polycarbophil Moderate
Other interactions of Tetracycline
- Acitretin + Tetracycline Contraindicated
- Methoxyflurane + Tetracycline Contraindicated
- Isotretinoin + Tetracycline Major
- Palovarotene + Tetracycline Major
- Strontium ranelate + Tetracycline Major
- Tetracycline + Tretinoin Major
Frequently asked questions
Can I take Polycarbophil with Tetracycline?
MediHelp rates the interaction as moderate. Polycarbophil and Tetracycline 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. Calcium polycarbophil can chelate tetracycline in the gut and reduce its absorption. This may lower antibiotic exposure and efficacy.
How serious is the interaction between Polycarbophil and Tetracycline?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give tetracycline at least 2 hours before or 4 to 6 hours after polycarbophil. Monitor clinical response.
What other medicines interact with Polycarbophil?
MediHelp also lists interactions of Polycarbophil with, for example, Demeclocycline, Doxycycline, Minocycline. The full list is on the Polycarbophil page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
