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Does Rimantadine Hydrochloride Interact with Live Attenuated Vaccines?

Rimantadine Hydrochloride and Live Attenuated Vaccines have a moderate drug interaction according to U.S. FDA drug labeling data. Potential interference between products. LAIV should not be administered until 48 hours after rimantadine cessation; rimantadine should not be given until 2 weeks after LAIV unless medically indicated. The mechanism involves potential for antiviral drugs to inhibit replication of live vaccine virus. 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
Moderate
Management
Monitor for effects
Data Source
U.S. FDA via OpenFDA

How This Interaction Works

The interaction between Rimantadine Hydrochloride and Live Attenuated Vaccines occurs because potential for antiviral drugs to inhibit replication of live vaccine virus. Clinically, this means potential interference between products. laiv should not be administered until 48 hours after rimantadine cessation; rimantadine should not be given until 2 weeks after laiv unless medically indicated. This is classified as a moderate interaction. While it may not require stopping either medication, your healthcare provider should be aware you are taking both so they can monitor for potential effects and adjust treatment if necessary.

What To Tell Your Doctor or Pharmacist

If you are taking Rimantadine Hydrochloride and your doctor is considering prescribing Live Attenuated Vaccines (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 whether any dosage adjustments are needed
  • Never stop or change either medication without first consulting your healthcare provider
💊 Rimantadine Hydrochloride(Rimantadine Hydrochloride)+💊 Live Attenuated Vaccines

Severity & Interaction Details

🟡
moderate
Be aware — moderate interaction
Documented interaction with manageable risk. May require dose adjustment or monitoring.
Severity scale
MinorContra
On record
Yes
Drug A class
—
Drug B class
—
Source
NLP:rimantadine hydrochloride

What this means in plain English

Potential interference between products. LAIV should not be administered until 48 hours after rimantadine cessation; rimantadine should not be given until 2 weeks after LAIV unless medically indicated.

What the FDA label says

"Potential for antiviral drugs to inhibit replication of live vaccine virus"

📖 Source: NLP:rimantadine hydrochloride

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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.