Drug interactions
Lofexidine + Methyldopa
Severity: Major
Lofexidine and Methyldopa: major 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
Lofexidine is a central alpha-2 agonist that lowers blood pressure and heart rate, and methyldopa acts through a similar central pathway. Together they can cause excessive hypotension and bradycardia.
What this interaction means in plain words
Lofexidine and Methyldopa can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Lofexidine belongs to Central Nervous System; Methyldopa belongs to Cardiovascular.
Why it happens
Additive central sympatholytic effects reducing blood pressure and heart rate.
What to do
Avoid the combination where possible, or monitor blood pressure and pulse closely and reduce doses if hypotension or bradycardia develops.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Methyldopa
- Methyldopa + Tranylcypromine Contraindicated
- Iobenguane i + Methyldopa Major
- Methyldopa + Pexidartinib Major
- Methyldopa + Pretomanid Major
- Methyldopa + Thioridazine Major
- Adrenaline-articaine + Methyldopa Moderate
Other interactions of Lofexidine
- Adagrasib + Lofexidine Major
- Alfuzosin + Lofexidine Major
- Amiodarone + Lofexidine Major
- Amisulpride + Lofexidine Major
- Anagrelide + Lofexidine Major
- Apomorphine + Lofexidine Major
Frequently asked questions
Can I take Lofexidine with Methyldopa?
MediHelp rates the interaction as major. Lofexidine and Methyldopa can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Lofexidine is a central alpha-2 agonist that lowers blood pressure and heart rate, and methyldopa acts through a similar central pathway. Together they can cause excessive hypotension and bradycardia.
How serious is the interaction between Lofexidine and Methyldopa?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible, or monitor blood pressure and pulse closely and reduce doses if hypotension or bradycardia develops.
What other medicines interact with Methyldopa?
MediHelp also lists interactions of Methyldopa with, for example, Tranylcypromine, Iobenguane i, Pexidartinib. The full list is on the Methyldopa page.
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