Most drugs are compatible with breastfeeding and for those that aren?t the doctor can generally find an alternative drug. One problem is that most doctors don?t have a specific book like Medications and Mothers' Milk by Thomas Hale but instead use information from the drug companies. The drug companies very rarely pay for research into whether their drug is Ok while breastfeeding and so in order to cover themselves from possible legal claims they say the drug mustn?t be used while you are breastfeeding.
An example is Labetalol ? a drug used for high blood pressure.
The box says:
Labetalol has been found in human breast milk. Therefore, it should be used cautiously in nursing mothers because of the risk that the infant may develop a slow heart rate.
Hale on the other hand says:
Lactation Risk = L2 ? SAFER ? Drug which has been studied in a limited number of breastfeeding women without an increase in adverse effects in the infant. And/or, the evidence of a demonstrated risk which is likely to follow use of this medication in a breastfeeding woman is remote.
He goes on to say that, ?Only small amounts are secreted into human milk.?
(There are a total of five Lactation Risks:
L1 = SAFEST
L2 = SAFER
L3 = MODERATELY SAFE
L4 = POSSIBLY HAZARDOUS
L5 = CONTRAINDICATED)
I?ve been helping mothers with questions about taking drugs while breastfeeding for nearly 15 years and only once has the drug been so necessary and so dangerous for the baby that immediate and total weaning was required.
Another consideration is the age of the baby. Drugs are most easily passed on to the baby in the first two days of life ? before the milk wall is closed (and yet it is a time that most of us have a huge number of drugs in our system). As the baby gets bigger he can often cope with small amounts of drugs in the milk.
Some drugs that a doctor might hesitate to give you when your baby is only six days old won?t be seen as a problem when the baby is six months old.
Please feel free to contact me if you have any questions about drugs while breastfeeding (I have even been known to lend my Medications and Mothers? Milk out to doctors in special cases).
Best wishes,
SARAH