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Drug interactions

Aluminum hydroxide + Ephedrine

Severity: Minor

Aluminum hydroxide and Ephedrine: 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

Alkaline urine reduces ephedrine renal excretion and may prolong its effects. Aluminum hydroxide only weakly alters urine pH, so the effect is small.

What this interaction means in plain words

Aluminum hydroxide and Ephedrine 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; Ephedrine belongs to Cardiovascular.

Evidence level: Low

Why it happens

Higher urinary pH increases tubular reabsorption of ephedrine, reducing its clearance.

What to do

No routine adjustment is needed. Watch for excess sympathomimetic effects such as tachycardia and hypertension.

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 Ephedrine?

MediHelp rates the interaction as minor. Aluminum hydroxide and Ephedrine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Alkaline urine reduces ephedrine renal excretion and may prolong its effects. Aluminum hydroxide only weakly alters urine pH, so the effect is small.

How serious is the interaction between Aluminum hydroxide and Ephedrine?

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 routine adjustment is needed. Watch for excess sympathomimetic effects such as tachycardia and hypertension.

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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