Does antihistamine pass through breast milk?

Antihistamines and Breastfeeding: What You Need to Know
As allergy season approaches or when cold symptoms strike, many breastfeeding mothers may find themselves reaching for antihistamines. However, a common concern arises: Do these medications pass through breast milk, and if so, what does that mean for nursing infants?
Understanding Antihistamines
Antihistamines are commonly used to alleviate allergy symptoms, but they can be categorized into two main types: first-generation and second-generation. First-generation antihistamines, such as diphenhydramine (Benadryl), are known for their sedative effects, while second-generation antihistamines, like cetirizine (Zyrtec), are less sedating and often preferred for their safety profile.
Passage Through Breast Milk
Research indicates that small amounts of antihistamines can pass into breast milk. For instance, cetirizine, a widely used second-generation antihistamine, has been shown to transfer into breast milk in very small quantities. This is largely due to its high protein binding, which limits the amount that can enter the milk. Importantly, no adverse effects have been reported in infants exposed to cetirizine through breast milk, suggesting that it is generally considered safe for breastfeeding mothers when taken in small, occasional doses.
Conversely, first-generation antihistamines may pose more risks. While there is limited systematic research on their effects during breastfeeding, concerns have been raised about their potential to cause drowsiness in infants or even affect milk production. Therefore, healthcare providers often recommend caution with these medications.
Recommendations for Breastfeeding Mothers
For mothers who are breastfeeding and considering antihistamines, the following guidelines can be helpful:
1. Opt for Second-Generation Antihistamines: Medications like cetirizine are preferred due to their lower sedative effects and minimal transfer into breast milk.

2. Use Sparingly: While occasional use of antihistamines is generally safe, prolonged use or higher doses should be approached with caution, as they may lead to drowsiness in infants or impact milk supply.
3. Consult Healthcare Providers: It’s always best for breastfeeding mothers to discuss any medication use with their healthcare provider to ensure safety for both mother and child.
Conclusion
In summary, while antihistamines do pass into breast milk, the amounts are typically small, particularly with second-generation options like cetirizine. With careful consideration and professional guidance, breastfeeding mothers can manage their allergy symptoms effectively while minimizing risks to their infants. As always, staying informed and consulting with healthcare professionals is key to making safe choices during breastfeeding.

Why is Benadryl not safe for breastfeeding?

Taking Benadryl occasionally during breastfeeding is safe. However, taking Benadryl regularly or in large doses may cause side effects in a child who is breastfed. It may also reduce your milk supply. Antihistamines that cause less sleepiness are usually preferred over oral Benadryl while breastfeeding.

Will Claritin dry up my breast milk?

Is It Safe to Take Claritin While Breastfeeding? While regular Claritin is completely fine, taking Claritin-D while breastfeeding may reduce milk supply. Claritin-D contains both loratadine, an antihistamine, and pseudoephedrine sulfate, a nasal decongestant,2 which may reduce milk supply, says Silverman.

What are the safest antihistamines during pregnancy?

Safety of antihistamines during pregnancy
The American College of Obstetricians and Gynecologists (ACOG) and The American College of Allergy, Asthma and Immunology (ACAAI) have recommended chlorpheniramine and tripelennamine as the antihistamines of choice for pregnant women.

Do histamines pass through breast milk?

Elevated levels of histamine have not been found in breast milk. During pregnancy, there is an increase in the production of the DAO enzyme in most placentas from week 12 of gestation to create a metabolic barrier and prevent excessive entry of histamine into the fetus.

Can I take an antihistamine while breastfeeding?

Less sedating antihistamines such as loratadine can be used while breastfeeding for the relief of allergies and hayfever. 5 Sedating antihistamines are not recommended because the medicine may pass into your breast milk and make your baby drowsy.

How long does Benadryl stay in breastmilk?

Also ask how long the medicine will be in your breast milk, so you can plan for future feedings or pumping. Hux says that 50 milligrams of Benadryl, which is usually the dose taken for an allergic reaction, is going to stay in your system for about eight hours or even a little longer.

Why is Zyrtec not recommended while breastfeeding?

Zyrtec, although generally safe, is not recommended during breastfeeding because it passes into breast milk and may affect a nursing infant. Possible side effects on the baby include irritation or lethargy. Always consult your healthcare provider before taking any medication while breastfeeding.

Is Claritin better than Zyrtec while breastfeeding?

Zyrtec (cetirizine) is the preferred antihistamine when breastfeeding. Other second-generation antihistamines are also considered safe, but do not have as much research to support their use. These include Allegra (fexofenadine), Claritin (loratidine), and Xyzal (levocetirizine).

Does Claritin affect baby?

Claritin is safe to take during pregnancy and nursing. However, a person should always consult a doctor before taking any medication while pregnant or nursing. While most antihistamines are safe, other medications, such as decongestants, may pose a risk to the pregnant person and fetus.

Can I pass my allergies to my baby through breastfeeding?

Food allergens in the mother’s diet can pass through into the breastmilk so a breastfed baby can have an allergic response or intolerance to something in the mother’s diet.