Does Allergy Medicine Affect Breast Milk Supply

Most allergy medication are considered safe for use while breastfeeding and will not impact your milk supply.

Do antihistamines affect breast milk supply?

Antihistamines, like Benadryl, have negative effects on breastfeeding and should be avoided if possible. Medicines like this decrease milk supply if used at high doses and for long periods of time. Sudafed can decrease milk supply and should also be avoided if possible.

What medications cause low milk supply?

• Antihistamines like diphenhydramine (Benadryl) and cetirizine (Zyrtec)
• Birth control pills containing estrogen.
• Decongestants and other medications containing pseudoephedrine, like Sudafed, Zyrtec-D, Claritin-D and Allegra-D.
• Fertility medications like clomiphene (Clomid)