iPhone Screenshots


LactMed, part of the National Library of Medicine's (NLM) Toxicology Data Network (TOXNET®), is a database of drugs and dietary supplements that may affect breastfeeding. It includes information on the levels of such substances in breast milk and infant blood, and possible adverse effects in the nursing infant. Suggested therapeutic alternatives to those drugs are provided, where appropriate. All data are derived from the scientific literature and fully referenced. Summaries of the reported information are provided and include links to other NLM databases. Supplemental links to breastfeeding resources from credible organizations are also provided.

What’s New

Version 3.4

-minor bug fixes

Ratings and Reviews

3.7 out of 5
11 Ratings
11 Ratings
Fayscoll ,


When looking up Norco 5/325 the information given is for acetaminophen only. This is extremely dangerous given the nature of this app is drug safety for a nursing infant. Glad I know there is more than just acetaminophen in those pills but some people may not and that's scary! Please fix this! Also the most recent cited information resource is from 1987. There must be more recent information available. Dr. Hale is known as the leading authority on drug interactions with breastfeeding and his work isn't referenced at all. What is goin on here? I thought this was going to be a respectable resource. Glad I did some double checking for the sake of my baby. I'll stick to the infant risk website. A great resource for any breastfeeding mother!

Spiffy Spifferson ,


Doesn’t have every drug available in the US, seems to have a lot of common OTCs. It’s ok, but you could definitely find this info googling it& I would still check with the dr.

Mrotmd ,


I have to echo the previous review. As a physician I am not going to make that mistake, but when looking especially for Narco, the listing ignores the codeine component. I know it is there, but the app is available to any lay person. Dangerous


National Library of Medicine
15 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
You must be at least 17 years old to download this app.
Frequent/Intense Medical/Treatment Information
© 2016 National Library of Medicine


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like