Drug interactions
Dextroamphetamine + Methylphenidate
Severity: Moderate
Dextroamphetamine and Methylphenidate: 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
Both are CNS stimulants that increase catecholamine activity, so together they add to heart rate and blood pressure rises, insomnia, anxiety and abuse potential. Combination is sometimes used by specialists but needs oversight.
What this interaction means in plain words
Dextroamphetamine and Methylphenidate 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.
Dextroamphetamine belongs to Central Nervous System; Methylphenidate belongs to Central Nervous System.
Why it happens
Additive enhancement of dopaminergic and noradrenergic neurotransmission.
What to do
Use only under specialist supervision with monitoring of blood pressure, heart rate and mental state, and keep total stimulant dose as low as possible.
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
Other interactions of Methylphenidate
- Isocarboxazid + Methylphenidate Contraindicated
- Linezolid + Methylphenidate Contraindicated
- Methylphenidate + Phenelzine Contraindicated
- Methylphenidate + Procarbazine Contraindicated
- Methylphenidate + Rasagiline Contraindicated
- Methylphenidate + Safinamide Contraindicated
Frequently asked questions
Can I take Dextroamphetamine with Methylphenidate?
MediHelp rates the interaction as moderate. Dextroamphetamine and Methylphenidate 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. Both are CNS stimulants that increase catecholamine activity, so together they add to heart rate and blood pressure rises, insomnia, anxiety and abuse potential. Combination is sometimes used by specialists but needs oversight.
How serious is the interaction between Dextroamphetamine and Methylphenidate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use only under specialist supervision with monitoring of blood pressure, heart rate and mental state, and keep total stimulant dose as low as possible.
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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