Zaleplon

Drug Levels and Effects:




Summary of Use during Lactation:


Because of the low levels of zaleplon in breastmilk and its short half-life, amounts ingested by the infant are small and would not be expected to cause any adverse effects in breastfed infants. No special precautions are required.


Drug Levels:


Maternal Levels.

Five nursing mothers who were at least 14 days postpartum were given a single oral dose of zaleplon 10 mg. The peak milk level averaged 14 mcg/L at 1.2 hours after the dose. The mean half-life in milk was 1.1 hours.[1] Using the peak milk level data from this study, an exclusively breastfed infant would receive an estimated maximum of 2.1 mcg/kg daily with this maternal dosage regimen or about 1.4% of the maternal weight-adjusted dosage.

Infant Levels.

Relevant published information was not found as of the revision date.


Effects in Breastfed Infants:


Relevant published information was not found as of the revision date.


Possible Effects on Lactation:


Relevant published information was not found as of the revision date.


Alternate Drugs to Consider:


Zolpidem


References:


1. Darwish M, Martin PT, Cevallos WH et al. Rapid disappearance of zaleplon from breast milk after oral administration to lactating women. J Clin Pharmacol. 1999;39:670-4. PMID:10392321



Substance Identification:




Substance Name:

Zaleplon

CAS Registry Number:

151319-34-5

Drug Class:


  • Hypnotics and Sedatives


  • Administrative Information:




    LactMed Record Number:


    395


    Last Revision Date:


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