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Drug interactions

Aluminum hydroxide + Mesalamine

Severity: Minor

Aluminum hydroxide and Mesalamine: 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

Antacids that alkalinize urine can change renal excretion of salicylates. The systemic salicylate exposure from mesalamine is low, and aluminum hydroxide has only a minor urinary pH effect, so a meaningful change is unlikely.

What this interaction means in plain words

Aluminum hydroxide and Mesalamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Aluminum hydroxide belongs to Gastrointestinal Tract; Mesalamine belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Urinary alkalinization may increase renal excretion of salicylate, reducing reabsorption.

What to do

No adjustment is needed. Separate dosing if a pH-dependent mesalamine product is used, and monitor colitis symptoms.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Aluminum hydroxide with Mesalamine?

MediHelp rates the interaction as minor. Aluminum hydroxide and Mesalamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Antacids that alkalinize urine can change renal excretion of salicylates. The systemic salicylate exposure from mesalamine is low, and aluminum hydroxide has only a minor urinary pH effect, so a meaningful change is unlikely.

How serious is the interaction between Aluminum hydroxide and Mesalamine?

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 adjustment is needed. Separate dosing if a pH-dependent mesalamine product is used, and monitor colitis symptoms.

What other medicines interact with Mesalamine?

MediHelp also lists interactions of Mesalamine with, for example, Aceclofenac, Acemetacin, Acetylsalicylic acid. The full list is on the Mesalamine page.

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