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Canadian Breastfeeding Foundation

Side effects of domperidone

As with all medications, side effects are possible, and many have been reported with domperidone (textbooks often list any side effect ever reported, but symptoms reported are not necessarily due to the drug a person is taking). There is no such thing as a 100% safe drug. However, our clinical experience has been that side effects in the mother are extremely uncommon, except for increasing milk supply. Some side effects reported by mothers we have treated (very uncommonly, incidentally):

The amount that gets into the milk is so tiny that side effects in the baby should not be expected. Mothers have not reported any to us, in many years of use. Certainly the amount the baby gets through the milk is a tiny percentage of what babies would get if being treated for spitting up.