Drug interactions
Strontium ranelate + Tetracycline
Severity: Major
Strontium ranelate and Tetracycline: major 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
Oral strontium ranelate forms complexes with tetracycline in the gut, reducing the antibiotic's absorption and potentially causing treatment failure. This applies to oral use of both drugs.
What this interaction means in plain words
Strontium ranelate and Tetracycline can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Strontium ranelate belongs to Musculoskeletal; Tetracycline belongs to Anti Bacterial.
Why it happens
Chelation by divalent strontium cations in the gastrointestinal tract reduces tetracycline absorption.
What to do
Suspend strontium ranelate for the duration of tetracycline therapy, as labeling recommends, and resume after the course ends.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Tetracycline
- Acitretin + Tetracycline Contraindicated
- Methoxyflurane + Tetracycline Contraindicated
- Isotretinoin + Tetracycline Major
- Palovarotene + Tetracycline Major
- Tetracycline + Tretinoin Major
- Tetracycline + Typhoid vaccine live Major
Other interactions of Strontium ranelate
- Minocycline + Strontium ranelate Major
- Aluminum hydroxide + Strontium ranelate Moderate
- Calcium carbonate + Strontium ranelate Moderate
- Calcium + Strontium ranelate Moderate
- Doxycycline + Strontium ranelate Moderate
- Gemifloxacin + Strontium ranelate Moderate
Frequently asked questions
Can I take Strontium ranelate with Tetracycline?
MediHelp rates the interaction as major. Strontium ranelate and Tetracycline can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Oral strontium ranelate forms complexes with tetracycline in the gut, reducing the antibiotic's absorption and potentially causing treatment failure. This applies to oral use of both drugs.
How serious is the interaction between Strontium ranelate and Tetracycline?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Suspend strontium ranelate for the duration of tetracycline therapy, as labeling recommends, and resume after the course ends.
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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