Estimated Time Until Zero Level of Alcohol in Breast Milk
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Women who wish to drink socially may reduce exposure to their infants by storing milk before drinking and/or waiting for complete alcohol elimination from the breast milk.


The calculator below estimates the time it would take to eliminate alcohol in the breast milk after consuming a given number of alcoholic drinks.

 Weight in pounds      Number of drinks   


 

  1 drink = 

12oz 5% beer
  5 oz 11% wine
  1.5 oz 40% liquor
                                                                                            

Assumptions:

  • Time is calculated from the beginning of drinking
  • Alcohol metabolism is constant 15 mg/dL
  • Height of the woman is 5 feet 4 inches

 

REFERENCES

1. Ho E, Collantes A, Kapur BM, Moretti M, Koren G.Alcohol and breast feeding: calculation of time to zero level in milk. Biol Neonate. 2001;80(3):219-22. MEDLINE

2. Motherisk Update: Drinking alcohol while breastfeeding
http://www.cfpc.ca/cfp/2002/Jan/vol48-jan-clinical-1.asp
accessed 9/29/05

 

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