Recreational Substances
Maternal Medications Recreational Substances

Recreational Substances

Drugs of abuse are generally contraindicated in nursing mothers. One possible exception may be occasional marijuana use1,2.

Because we know the active components of marijuana are excreted in breastmilk and concentrate in the developing brain of infants, marijuana use in lactation should definitely be discouraged. Exposure to the smoke itself should also be avoided. But the risk of completely weaning because of occasional marijuana use may be greater than the risk of not breastfeeding. Research on this topic is a work in progress. Latest information is available at Lactmed, the Infant Risk Center, and, as listed above.




  1. American College of OB/Gyn Committee on Obstetric Practice Opinion Marijuana Use During Pregnancy and Lactation Number 722 Obstetrics and Gynecology 2017;130:e205-9
  2. American Academy of Pediatrics Marijuana Use During Pregnancy and Breastfeeding: Implications for Neonatal and Childhood Outcomes Pediatrics 142(3) Sept 2018
  3. Bruun Haastrup M, Pottegard A, Damkier P. Alcohol and Breastfeeding Basic & Clin Pharm & Tox 2014, 114, 168-173
  4. Napierala M, Mazela J, Merritt TA, Florek E Tobacco smoking and breastfeeding: Effect on the lactation process, breastmilk composition and infant development. A critical review Environmental Research 151 (2016) 321-338