Retinoid, an acid form of vitamin A. At latest update no published data on excretion into breast milk were found.It is a normal component of breastmilk. Because of the small dose used and poor absorption into plasma of most topical dermatological preparations, excretion into breastmilk in significant amount appears to be unlikely. Do not apply on the breast, otherwise, wash it off thoroughly before next feed. Systemic use (overall as an antineoplastic drug) while breastfeeding is absolutely contraindicated.
CAS Number: 302-79-4
Tretinoin has not been studied during breastfeeding. Breastfeeding should probably be avoided after oral use. Because it is poorly absorbed after topical application, it is considered a low risk to the nursing infant.[1][2][3] Ensure that the infant's skin does not come into direct contact with the areas of skin that have been treated. Only water-miscible cream or gel products should be applied to the breast because ointments may expose the infant to high levels of mineral paraffins via licking.[4]
It is always a good idea to keep your healthcare provider or doctor informed about your drug usage during pregnancy and breastfeeding but if you have not informed your doctor about Tretinoin Cream and have used it then do not panic as Tretinoin Cream is mostly safe in breastfeeding and should not cause any harm to your baby.
Definitely, Tretinoin Cream is safe in lactation for baby. No wonder your doctor has recommended it.
No extra baby monitoring required while mother is using Tretinoin Cream
US
National Womens Health and Breastfeeding Helpline: 800-994-9662 (TDD 888-220-5446) 9 a.m. and 6 p.m. ET, Monday through Friday
UK
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
Australia
National Breastfeeding Helpline: 1800-686-268 24 hours a day, 7 days a week
Canada
Telehealth Ontario for breastfeeding: 1-866-797-0000 24 hours a day, 7 days a week