Drug interactions
Ephedrine + Methamphetamine
Severity: Moderate
Ephedrine 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
Both drugs are sympathomimetic amines that release norepinephrine. Together they produce additive increases in blood pressure and heart rate and can cause palpitations, anxiety and arrhythmia, which matters in patients with heart disease.
What this interaction means in plain words
Ephedrine 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.
Ephedrine belongs to Cardiovascular; Methamphetamine belongs to Central Nervous System.
Why it happens
Additive pharmacodynamic sympathomimetic effects via indirect norepinephrine release.
What to do
Avoid concurrent use where possible and monitor blood pressure and heart rate. Use lower ephedrine doses in hospital settings.
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
Other interactions of Ephedrine
- Ephedrine + Isocarboxazid Contraindicated
- Ephedrine + Phenelzine Contraindicated
- Ephedrine + Procarbazine Contraindicated
- Ephedrine + Rasagiline Contraindicated
- Ephedrine + Selegiline Contraindicated
- Ephedrine + Tranylcypromine Contraindicated
Frequently asked questions
Can I take Ephedrine with Methamphetamine?
MediHelp rates the interaction as moderate. Ephedrine 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. Both drugs are sympathomimetic amines that release norepinephrine. Together they produce additive increases in blood pressure and heart rate and can cause palpitations, anxiety and arrhythmia, which matters in patients with heart disease.
How serious is the interaction between Ephedrine 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: Avoid concurrent use where possible and monitor blood pressure and heart rate. Use lower ephedrine doses in hospital settings.
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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