Drug interactions
Aluminum hydroxide + Vitamin c
Severity: Moderate
Aluminum hydroxide and Vitamin c: 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
Ascorbic acid, and citrate in general, can increase gastrointestinal absorption of aluminum from aluminum-containing antacids. This is mainly relevant in patients with renal impairment, in whom aluminum accumulates and may cause toxicity such as bone disease or encephalopathy.
What this interaction means in plain words
Aluminum hydroxide and Vitamin c 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.
Aluminum hydroxide belongs to Gastrointestinal Tract; Vitamin c belongs to Gastrointestinal Tract.
Why it happens
Ascorbic acid forms absorbable soluble aluminum complexes, increasing intestinal aluminum uptake.
What to do
Avoid taking large doses of vitamin C together with aluminum antacids in patients with renal impairment. Separate administration and prefer non-aluminum phosphate binders or antacids.
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 Aluminum hydroxide
Frequently asked questions
Can I take Aluminum hydroxide with Vitamin c?
MediHelp rates the interaction as moderate. Aluminum hydroxide and Vitamin c 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. Ascorbic acid, and citrate in general, can increase gastrointestinal absorption of aluminum from aluminum-containing antacids. This is mainly relevant in patients with renal impairment, in whom aluminum accumulates and may cause toxicity such as bone disease or encephalopathy.
How serious is the interaction between Aluminum hydroxide and Vitamin c?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid taking large doses of vitamin C together with aluminum antacids in patients with renal impairment. Separate administration and prefer non-aluminum phosphate binders or antacids.
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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