Drug interactions
Aluminum hydroxide + Flecainide
Severity: Minor
Aluminum hydroxide and Flecainide: 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
Flecainide clearance falls when urine is alkaline, which could raise levels. Aluminum hydroxide has little effect on urinary pH, so a meaningful interaction is unlikely.
What this interaction means in plain words
Aluminum hydroxide and Flecainide 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; Flecainide belongs to Cardiovascular.
Why it happens
Alkaline urine reduces renal excretion of flecainide, but aluminum hydroxide only weakly alkalinizes urine.
What to do
No routine action needed. Monitor ECG and flecainide effects if urinary alkalinization from other causes is present.
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?
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Other interactions of Aluminum hydroxide
Frequently asked questions
Can I take Aluminum hydroxide with Flecainide?
MediHelp rates the interaction as minor. Aluminum hydroxide and Flecainide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Flecainide clearance falls when urine is alkaline, which could raise levels. Aluminum hydroxide has little effect on urinary pH, so a meaningful interaction is unlikely.
How serious is the interaction between Aluminum hydroxide and Flecainide?
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 action needed. Monitor ECG and flecainide effects if urinary alkalinization from other causes is present.
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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