Is Zostrix Safe in Breastfeeding

Question

I am a breastfeeding mother and i want to know if it is safe to use Zostrix? Is Zostrix safe for nursing mother and child? Does Zostrix extracts into breast milk? Does Zostrix has any long term or short term side effects on infants? Can Zostrix influence milk supply or can Zostrix decrease milk supply in lactating mothers?

Zostrix lactation summary

Zostrix usage has low risk in breastfeeding

DrLact safety Score for Zostrix is 3 out of 8 which is considered Low Risk as per our analyses.
A safety Score of 3 indicates that usage of Zostrix may cause some minor side effects in breastfed baby.
Our study of different scientific research indicates that Zostrix may cause moderate to no side effects in lactating mother.
Most of scientific studies and research papers declaring usage of Zostrix low risk in breastfeeding are based on normal dosage and may not hold true for higher dosage.
While using Zostrix We suggest monitoring child for possible reactions. It is also important to understand that side effects vary largely based on age of breastfed child and time of medication in addition to dosage.
Score calculated using the DrLact safety Version 1.2 model, this score ranges from 0 to 8 and measures overall safety of drug in lactation. Scores are primarily calculated using publicly available case studies, research papers, other scientific journals and publically available data.

Answer by Dr. Ru: About Zostrix usage in lactation

Zostrix is an oleoresin contained in ripe and dry fruits of hot peppers. It is used for seasoning food and as medicine for topical analgesia in the form of creams, gels or patches. A low absorption into plasma (very low levels or undetectable in plasma) and rapid clearance make it highly unlikely the passage of significant amount toward breast milk. Do not apply on the chest or thoroughly clean it off before breastfeeding.