Drug interactions
Dextroamphetamine + Moxonidine
Severity: Moderate
Dextroamphetamine and Moxonidine: 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
Moxonidine is a centrally acting antihypertensive that reduces sympathetic outflow, whereas dextroamphetamine raises blood pressure through sympathomimetic effects. Amphetamine may blunt the blood pressure control achieved with moxonidine, and the sedation effects oppose each other.
What this interaction means in plain words
Dextroamphetamine and Moxonidine 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
Pharmacodynamic antagonism between central sympatholytic action and amphetamine-induced catecholamine release.
What to do
Monitor blood pressure after starting or adjusting either drug. Adjust antihypertensive therapy if control is lost.
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 Dextroamphetamine
- Dextroamphetamine + Isocarboxazid Contraindicated
- Dextroamphetamine + Linezolid Contraindicated
- Dextroamphetamine + Methylene blue Contraindicated
- Dextroamphetamine + Phenelzine Contraindicated
- Dextroamphetamine + Rasagiline Contraindicated
- Dextroamphetamine + Safinamide Contraindicated
Frequently asked questions
Can I take Dextroamphetamine with Moxonidine?
MediHelp rates the interaction as moderate. Dextroamphetamine and Moxonidine 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. Moxonidine is a centrally acting antihypertensive that reduces sympathetic outflow, whereas dextroamphetamine raises blood pressure through sympathomimetic effects. Amphetamine may blunt the blood pressure control achieved with moxonidine, and the sedation effects oppose each other.
How serious is the interaction between Dextroamphetamine and Moxonidine?
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 blood pressure after starting or adjusting either drug. Adjust antihypertensive therapy if control is lost.
What other medicines interact with Dextroamphetamine?
MediHelp also lists interactions of Dextroamphetamine with, for example, Isocarboxazid, Linezolid, Methylene blue. The full list is on the Dextroamphetamine page.
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