Drug interactions
Aluminum hydroxide + Benzphetamine
Severity: Minor
Aluminum hydroxide and Benzphetamine: 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
Urinary alkalinization slows renal elimination of weakly basic amphetamine-like drugs. Aluminum hydroxide only weakly changes urine pH, so any increase in benzphetamine effect is small.
What this interaction means in plain words
Aluminum hydroxide and Benzphetamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Higher urine pH increases tubular reabsorption of the basic drug, reducing renal clearance.
What to do
No routine change is needed. Monitor for stimulant effects such as tachycardia, insomnia and raised blood pressure.
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 Benzphetamine?
MediHelp rates the interaction as minor. Aluminum hydroxide and Benzphetamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Urinary alkalinization slows renal elimination of weakly basic amphetamine-like drugs. Aluminum hydroxide only weakly changes urine pH, so any increase in benzphetamine effect is small.
How serious is the interaction between Aluminum hydroxide and Benzphetamine?
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 change is needed. Monitor for stimulant effects such as tachycardia, insomnia and raised blood pressure.
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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