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Does Artemether And Lumefantrine Interact with Rifampin?

Artemether And Lumefantrine and Rifampin have a contraindicated drug interaction according to U.S. FDA drug labeling data. Strong CYP3A4 inducer causing significant decreases in artemether (89%), DHA (85%), and lumefantrine (68%) exposure, resulting in loss of antimalarial efficacy. The mechanism involves cyp3a4 induction. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Contraindicated
Artemether And Lumefantrine Class
Antimalarial
Rifampin Class
Rifamycin Antibacterial
Management
Do not take together
Data Source
U.S. FDA via OpenFDA

How This Interaction Works

The interaction between Artemether And Lumefantrine and Rifampin occurs because cyp3a4 induction. Clinically, this means strong cyp3a4 inducer causing significant decreases in artemether (89%), dha (85%), and lumefantrine (68%) exposure, resulting in loss of antimalarial efficacy. Because of the severity of this interaction, these medications are contraindicated — meaning they should not be taken together under any circumstances. If you are currently taking both, contact your healthcare provider immediately to discuss alternatives.

What To Tell Your Doctor or Pharmacist

If you are taking Artemether And Lumefantrine and your doctor is considering prescribing Rifampin (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Ask about alternative medications that do not interact with your current regimen
  • Ask how frequently you should be monitored while these are co-prescribed
  • Never stop or change either medication without first consulting your healthcare provider
💊 Artemether And Lumefantrine(Coartem)+💊 Rifampin(Rifampin)

Severity & Interaction Details

⛔
contraindicated
Avoid this combination
FDA labeling lists this pair as contraindicated. The risk outweighs the benefit in nearly all cases.
Severity scale
MinorContra
On record
Yes
Drug A class
Antimalarial
Drug B class
Rifamycin Antibacterial
Source
NLP:artemether and lumefantrine

What this means in plain English

Strong CYP3A4 inducer causing significant decreases in artemether (89%), DHA (85%), and lumefantrine (68%) exposure, resulting in loss of antimalarial efficacy.

What the FDA label says

"CYP3A4 induction"

📖 Source: NLP:artemether and lumefantrine

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Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine. For informational purposes only. Always consult your pharmacist or physician.