Drug interactions
Epinephrine racemic + Methamphetamine
Severity: Moderate
Epinephrine racemic and Methamphetamine: 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
Racemic epinephrine, used by inhalation for airway edema, has direct adrenergic effects, and methamphetamine increases catecholamine release. Together they may increase heart rate and blood pressure and raise arrhythmia risk, mainly with repeated or high dosing.
What this interaction means in plain words
Epinephrine racemic and Methamphetamine 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
Additive adrenergic stimulation from direct receptor agonism and amphetamine-induced catecholamine release.
What to do
Monitor heart rate, rhythm and blood pressure during and after treatment. Use the lowest effective epinephrine dose and reassess if tachyarrhythmia occurs.
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 Methamphetamine
- Isocarboxazid + Methamphetamine Contraindicated
- Linezolid + Methamphetamine Contraindicated
- Methamphetamine + Phenelzine Contraindicated
- Methamphetamine + Procarbazine Contraindicated
- Methamphetamine + Rasagiline Contraindicated
- Methamphetamine + Safinamide Contraindicated
Frequently asked questions
Can I take Epinephrine racemic with Methamphetamine?
MediHelp rates the interaction as moderate. Epinephrine racemic and Methamphetamine 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. Racemic epinephrine, used by inhalation for airway edema, has direct adrenergic effects, and methamphetamine increases catecholamine release. Together they may increase heart rate and blood pressure and raise arrhythmia risk, mainly with repeated or high dosing.
How serious is the interaction between Epinephrine racemic and Methamphetamine?
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 heart rate, rhythm and blood pressure during and after treatment. Use the lowest effective epinephrine dose and reassess if tachyarrhythmia occurs.
What other medicines interact with Methamphetamine?
MediHelp also lists interactions of Methamphetamine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Methamphetamine page.
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