Drug interactions
Sodium citrate / citric acid + Tetracycline
Severity: Minor
Sodium citrate / citric acid and Tetracycline: 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
Citrate preparations are alkalinizing and, as they often contain sodium or other cations, may modestly reduce tetracycline absorption. Evidence for a clinically significant effect is limited.
What this interaction means in plain words
Sodium citrate / citric acid and Tetracycline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Possible reduction of tetracycline dissolution through alkalinization and cation binding.
What to do
Separate doses by about 2 hours. Monitor for reduced antibiotic response.
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 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 Sodium citrate / citric acid with Tetracycline?
MediHelp rates the interaction as minor. Sodium citrate / citric acid and Tetracycline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Citrate preparations are alkalinizing and, as they often contain sodium or other cations, may modestly reduce tetracycline absorption. Evidence for a clinically significant effect is limited.
How serious is the interaction between Sodium citrate / citric acid and Tetracycline?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Separate doses by about 2 hours. Monitor for reduced antibiotic response.
What other medicines interact with Tetracycline?
MediHelp also lists interactions of Tetracycline with, for example, Acitretin, Methoxyflurane, Isotretinoin. The full list is on the Tetracycline page.
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