Does Human Botulinum Neurotoxin Ab Immune Globulin Interact with Varicella Vaccine?
Human Botulinum Neurotoxin Ab Immune Globulin and Varicella Vaccine have a moderate drug interaction according to U.S. FDA drug labeling data. Antibodies in BabyBIG may interfere with immune response to monovalent varicella vaccine; vaccination should be deferred until 6 months after BabyBIG administration. The mechanism involves passive antibody transfer interferes with live virus vaccine response. 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
- Human Botulinum Neurotoxin Ab Immune Globulin Class
- Human Immunoglobulin G
- Management
- Monitor for effects
- Data Source
- U.S. FDA via OpenFDA
How This Interaction Works
The interaction between Human Botulinum Neurotoxin Ab Immune Globulin and Varicella Vaccine occurs because passive antibody transfer interferes with live virus vaccine response. Clinically, this means antibodies in babybig may interfere with immune response to monovalent varicella vaccine; vaccination should be deferred until 6 months after babybig administration. 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 Human Botulinum Neurotoxin Ab Immune Globulin and your doctor is considering prescribing Varicella Vaccine (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