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Drug interactions

Aluminum hydroxide + Metoprolol

Severity: Minor

Aluminum hydroxide and Metoprolol: 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

Aluminum-containing antacids may slightly reduce metoprolol absorption. The effect on heart rate or blood pressure is generally small.

What this interaction means in plain words

Aluminum hydroxide and Metoprolol 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; Metoprolol belongs to Cardiovascular.

Evidence level: Low

Why it happens

Binding or adsorption in the gut lumen may reduce oral absorption of metoprolol.

What to do

Take metoprolol at least 2 hours apart from the antacid. Check heart rate and blood pressure if antacid use is frequent.

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 Metoprolol?

MediHelp rates the interaction as minor. Aluminum hydroxide and Metoprolol 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-containing antacids may slightly reduce metoprolol absorption. The effect on heart rate or blood pressure is generally small.

How serious is the interaction between Aluminum hydroxide and Metoprolol?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Take metoprolol at least 2 hours apart from the antacid. Check heart rate and blood pressure if antacid use is frequent.

What other medicines interact with Aluminum hydroxide?

MediHelp also lists interactions of Aluminum hydroxide with, for example, Ciprofloxacin, Deferasirox, Dolutegravir. The full list is on the Aluminum hydroxide page.

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