Drug interactions
Epinephrine + Methyldopa
Severity: Moderate
Epinephrine and Methyldopa: 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
Methyldopa may increase the pressor response to epinephrine, so blood pressure may rise more than expected. The significance depends on the dose and route of epinephrine.
What this interaction means in plain words
Epinephrine and Methyldopa 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.
Epinephrine belongs to Endocrine; Methyldopa belongs to Cardiovascular.
Why it happens
Mechanism is not firmly established; methyldopa may alter adrenergic receptor sensitivity to exogenous catecholamines.
What to do
Monitor blood pressure and heart rate when epinephrine is given systemically. Use the lowest effective epinephrine dose.
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 Methyldopa
- Methyldopa + Tranylcypromine Contraindicated
- Iobenguane i + Methyldopa Major
- Lofexidine + Methyldopa Major
- Methyldopa + Pexidartinib Major
- Methyldopa + Pretomanid Major
- Methyldopa + Thioridazine Major
Other interactions of Epinephrine
- Epinephrine + Isocarboxazid Contraindicated
- Epinephrine + Phenelzine Contraindicated
- Epinephrine + Tranylcypromine Contraindicated
- Acebutolol + Epinephrine Major
- Amitriptyline + Epinephrine Major
- Amoxapine + Epinephrine Major
Frequently asked questions
Can I take Epinephrine with Methyldopa?
MediHelp rates the interaction as moderate. Epinephrine and Methyldopa 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. Methyldopa may increase the pressor response to epinephrine, so blood pressure may rise more than expected. The significance depends on the dose and route of epinephrine.
How serious is the interaction between Epinephrine and Methyldopa?
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 and heart rate when epinephrine is given systemically. Use the lowest effective epinephrine dose.
What other medicines interact with Methyldopa?
MediHelp also lists interactions of Methyldopa with, for example, Tranylcypromine, Iobenguane i, Lofexidine. The full list is on the Methyldopa page.
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