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The recommendations the InfantRisk Center provides are not meant to replace medical advice from your physician. The ultimate decision to breastfeed while taking medications should be based on an informed decision including available data, discussions between a mother, her physician, and the infants' pediatrician. The decision to take medications during pregnancy should be based available data and a discussion between a mother and her OB/GYN.
We have no information about the effects of MDMA on babies or about how much ends up in the breastmilk. In adults, the drug has a half-life of about 8 hours. One "half-life" is the amount of time that it takes to eliminate half of the drug in your system. Four half-lives, 32 hours in this case, is usually enough to render all but the most toxic drugs safe for breastfeeding. I advise interrupting your breastfeeding for that period.
Please call us at the InfantRisk Center if this has not completely answered your question.*(806)352-2519
-James Abbey, MD
The following references may be useful to your physician if he or she needs more information:
de la Torre R, Farr? M, Roset PN, Pizarro N, Abanades S, Segura M, Segura J,
Cam? J. Human pharmacology of MDMA: pharmacokinetics, metabolism, and
disposition. Ther Drug Monit. 2004 Apr;26(2):137-44. Review. PubMed PMID:
15228154.
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