Adacel and Breastfeeding
Sources generally suggest that breastfeeding and Adacel are compatible. It is currently recommended that women get the vaccine during pregnancy, but it can be given after delivery if necessary. Before receiving this vaccine, breastfeeding women should consult their healthcare providers about the benefits and potential risks.
Adacel® (Tdap vaccine) is a pertussis (whooping cough), diphtheria, and tetanus vaccine used as a "booster" for adolescents and adults. It is considered safe for use while breastfeeding.
Currently, it is recommended that women get the Tdap vaccine (either Adacel or Boostrix®) during each pregnancy (see Adacel and Pregnancy). However, if a woman does not get vaccinated during pregnancy, Adacel can be given after delivery, ideally while the woman is still in the hospital, even if she is breastfeeding. This helps to prevent exposing the newborn to pertussis. It is a good idea for other family members to get the vaccine as well if they have not yet received it.
Adacel helps prevent infant pertussis in at least two ways. It helps prevent pertussis in the mother (which could easily spread to the infant), and it protects the infant directly, since maternal antibodies produced in response to the vaccine pass through breast milk and help the infant fight off pertussis. In addition, if it is given during pregnancy (not before or after), maternal antibodies against pertussis will pass through the placenta to the baby.
You should talk with your healthcare provider about Adacel and breastfeeding. Each woman's situation is different, and you and your healthcare provider understand your situation best. After considering what you want and expect, as well as your current health situation, the two of you can make a shared decision about breastfeeding and Adacel that is right for you.