Not much study has been done on Pyrithione zinc during breastfeeding however itís known to get absorbed in skin in some extant (Less than 1%). Topical usage is not likely to cause much problem but itís suggested to search for safer alternative.
Dandruff | Pyrthione Zinc Shampoo is in the category of low risk, if you have already used it then its not a big deal if health and behavior of baby is good. However your health care provider shall be aware of the fact that you have used Dandruff | Pyrthione Zinc Shampoo so you should inform him based on your convenience.
Dandruff | Pyrthione Zinc Shampoo comes in category of low risk and if your doctor is aware that you are breastfeeding it should be ok to use
Not much monitoring required while using Dandruff | Pyrthione Zinc Shampoo
National Womens Health and Breastfeeding Helpline: 800-994-9662 (TDD 888-220-5446) 9 a.m. and 6 p.m. ET, Monday through Friday
National Breastfeeding Helpline: 0300-100-0212 9.30am to 9.30pm, daily
Association of Breastfeeding Mothers: 0300-330-5453
La Leche League: 0345-120-2918
The Breastfeeding Network supporter line in Bengali and Sylheti: 0300-456-2421
National Childbirth Trust (NCT): 0300-330-0700
National Breastfeeding Helpline: 1800-686-268 24 hours a day, 7 days a week
Telehealth Ontario for breastfeeding: 1-866-797-0000 24 hours a day, 7 days a week