Drug interactions
Aluminum hydroxide / magnesium carbonate + Misoprostol
Severity: Moderate
Aluminum hydroxide / magnesium carbonate and Misoprostol: moderate 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
Magnesium-containing antacids can aggravate the diarrhea that is the most common adverse effect of misoprostol. Antacids may also modestly lower systemic exposure to misoprostol acid, though the clinical importance of this is uncertain.
What this interaction means in plain words
Aluminum hydroxide / magnesium carbonate and Misoprostol can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive osmotic laxative effect of magnesium with misoprostol-induced intestinal secretion and motility, plus possible reduced absorption of the active acid.
What to do
If an antacid is needed, prefer an aluminum- or calcium-based product without magnesium. Monitor for diarrhea and dehydration, especially in elderly patients.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Misoprostol
Frequently asked questions
Can I take Aluminum hydroxide / magnesium carbonate with Misoprostol?
MediHelp rates the interaction as moderate. Aluminum hydroxide / magnesium carbonate and Misoprostol can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Magnesium-containing antacids can aggravate the diarrhea that is the most common adverse effect of misoprostol. Antacids may also modestly lower systemic exposure to misoprostol acid, though the clinical importance of this is uncertain.
How serious is the interaction between Aluminum hydroxide / magnesium carbonate and Misoprostol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: If an antacid is needed, prefer an aluminum- or calcium-based product without magnesium. Monitor for diarrhea and dehydration, especially in elderly patients.
What other medicines interact with Misoprostol?
MediHelp also lists interactions of Misoprostol with, for example, Aluminum hydroxide / magnesium trisilicate. The full list is on the Misoprostol page.
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