Drug interactions
Dextroamphetamine transdermal + Potassium citrate-citric acid
Severity: Moderate
Dextroamphetamine transdermal and Potassium citrate-citric acid: 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
Potassium citrate alkalinizes urine, which reduces renal elimination of amphetamine and can raise its blood levels and prolong its effects. This may increase cardiovascular and CNS stimulation.
What this interaction means in plain words
Dextroamphetamine transdermal and Potassium citrate-citric acid 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
Urinary alkalinization increases the unionized fraction of amphetamine and reduces its renal excretion.
What to do
Monitor for increased stimulant effects such as tachycardia, hypertension and agitation, and reduce the amphetamine dose if needed. Avoid unnecessary urinary alkalinizers.
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 Potassium citrate-citric acid
Frequently asked questions
Can I take Dextroamphetamine transdermal with Potassium citrate-citric acid?
MediHelp rates the interaction as moderate. Dextroamphetamine transdermal and Potassium citrate-citric acid 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. Potassium citrate alkalinizes urine, which reduces renal elimination of amphetamine and can raise its blood levels and prolong its effects. This may increase cardiovascular and CNS stimulation.
How serious is the interaction between Dextroamphetamine transdermal and Potassium citrate-citric acid?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for increased stimulant effects such as tachycardia, hypertension and agitation, and reduce the amphetamine dose if needed. Avoid unnecessary urinary alkalinizers.
What other medicines interact with Potassium citrate-citric acid?
MediHelp also lists interactions of Potassium citrate-citric acid with, for example, Amiloride, Eplerenone, Finerenone. The full list is on the Potassium citrate-citric acid page.
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