Drug interactions
Alendronate + Sulphasalazine
Severity: Minor
Alendronate and Sulphasalazine: 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
The legacy concern is additive upper GI irritation, but sulfasalazine acts mainly in the colon and is not a recognised cause of upper GI ulceration through its salicylate moiety. The interaction is mostly theoretical.
What this interaction means in plain words
Alendronate and Sulphasalazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Alendronate belongs to Musculoskeletal; Sulphasalazine belongs to Gastrointestinal Tract.
Why it happens
Theoretical additive gastrointestinal mucosal irritation; not well established.
What to do
Give alendronate with a full glass of water and keep the patient upright for at least 30 minutes. Review any new upper GI symptoms promptly.
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 Sulphasalazine
- Deferiprone + Sulphasalazine Major
- Pexidartinib + Sulphasalazine Major
- Sepiapterin + Sulphasalazine Major
- Acalabrutinib + Sulphasalazine Moderate
- Aceclofenac + Sulphasalazine Moderate
- Asciminib + Sulphasalazine Moderate
Other interactions of Alendronate
- Aceclofenac + Alendronate Moderate
- Acemetacin + Alendronate Moderate
- Acetylsalicylic acid + Alendronate Moderate
- Alendronate + Aluminum hydroxide Moderate
- Alendronate + Aspirin Moderate
- Alendronate + Aspirin / citric acid / sodium bicarbonate Moderate
Frequently asked questions
Can I take Alendronate with Sulphasalazine?
MediHelp rates the interaction as minor. Alendronate and Sulphasalazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. The legacy concern is additive upper GI irritation, but sulfasalazine acts mainly in the colon and is not a recognised cause of upper GI ulceration through its salicylate moiety. The interaction is mostly theoretical.
How serious is the interaction between Alendronate and Sulphasalazine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give alendronate with a full glass of water and keep the patient upright for at least 30 minutes. Review any new upper GI symptoms promptly.
What other medicines interact with Sulphasalazine?
MediHelp also lists interactions of Sulphasalazine with, for example, Deferiprone, Pexidartinib, Sepiapterin. The full list is on the Sulphasalazine page.
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