Drug interactions
Dextroamphetamine + Ranolazine
Severity: Minor
Dextroamphetamine and Ranolazine: 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
Ranolazine inhibits CYP2D6, which contributes to amphetamine metabolism, so dextroamphetamine levels may increase modestly. Stimulant effects such as tachycardia and raised blood pressure could be amplified in patients with heart disease.
What this interaction means in plain words
Dextroamphetamine and Ranolazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Dextroamphetamine belongs to Central Nervous System; Ranolazine belongs to Cardiovascular.
Why it happens
Ranolazine inhibits CYP2D6, reducing dextroamphetamine metabolism.
What to do
Monitor heart rate and blood pressure and watch for signs of stimulant excess. Reduce the dextroamphetamine dose if adverse effects occur.
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 Ranolazine
- Adagrasib + Ranolazine Contraindicated
- Amobarbital + Ranolazine Contraindicated
- Apalutamide + Ranolazine Contraindicated
- Butabarbital + Ranolazine Contraindicated
- Carbamazepine + Ranolazine Contraindicated
- Clarithromycin + Ranolazine Contraindicated
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 Ranolazine?
MediHelp rates the interaction as minor. Dextroamphetamine and Ranolazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ranolazine inhibits CYP2D6, which contributes to amphetamine metabolism, so dextroamphetamine levels may increase modestly. Stimulant effects such as tachycardia and raised blood pressure could be amplified in patients with heart disease.
How serious is the interaction between Dextroamphetamine and Ranolazine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor heart rate and blood pressure and watch for signs of stimulant excess. Reduce the dextroamphetamine dose if adverse effects occur.
What other medicines interact with Ranolazine?
MediHelp also lists interactions of Ranolazine with, for example, Adagrasib, Amobarbital, Apalutamide. The full list is on the Ranolazine page.
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