Drug interactions
Carbidopa-entacapone-levodopa + Selegiline transdermal
Severity: Contraindicated
Carbidopa-entacapone-levodopa and Selegiline transdermal: contraindicated 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
Transdermal selegiline at antidepressant doses inhibits MAO-A and MAO-B nonselectively, and levodopa raises catecholamine levels. Together they can cause severe hypertensive reactions.
What this interaction means in plain words
Carbidopa-entacapone-levodopa and Selegiline transdermal are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Why it happens
Nonselective MAO inhibition prevents breakdown of dopamine and norepinephrine formed from levodopa, causing excessive pressor effects.
What to do
Do not combine; choose a different antidepressant in patients on levodopa. Allow an appropriate washout when switching.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Carbidopa-entacapone-levodopa and Selegiline transdermal, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Carbidopa-entacapone-levodopa
- Carbidopa-entacapone-levodopa + Isocarboxazid Contraindicated
- Carbidopa-entacapone-levodopa + Phenelzine Contraindicated
- Carbidopa-entacapone-levodopa + Tranylcypromine Contraindicated
- Amisulpride + Carbidopa-entacapone-levodopa Major
- Asenapine transdermal + Carbidopa-entacapone-levodopa Major
- Carbidopa-entacapone-levodopa + Chlorpromazine Major
Frequently asked questions
Can I take Carbidopa-entacapone-levodopa with Selegiline transdermal?
MediHelp rates the interaction as contraindicated. Carbidopa-entacapone-levodopa and Selegiline transdermal are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Transdermal selegiline at antidepressant doses inhibits MAO-A and MAO-B nonselectively, and levodopa raises catecholamine levels. Together they can cause severe hypertensive reactions.
How serious is the interaction between Carbidopa-entacapone-levodopa and Selegiline transdermal?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not combine; choose a different antidepressant in patients on levodopa. Allow an appropriate washout when switching.
What other medicines interact with Carbidopa-entacapone-levodopa?
MediHelp also lists interactions of Carbidopa-entacapone-levodopa with, for example, Isocarboxazid, Phenelzine, Tranylcypromine. The full list is on the Carbidopa-entacapone-levodopa page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
