Pregnancy and breastfeeding come with plenty of questions—especially when it comes to medications. If you’ve been prescribed or are currently using cetirizine (Zyrtec®, Reactine®) to treat allergy symptoms, you may wonder if this medication is safe to continue. Here’s what you need to know to help you make informed decisions with your healthcare provider.
About Cetirizine
Cetirizine is an antihistamine medication often used to treat allergy symptoms such as:
- Sneezing
- Itching
- Runny nose
- Watery eyes
Doctors often recommend this medication during pregnancy when allergy symptoms significantly impact quality of life and require treatment for the well-being of both mother and baby.
Effects on Fertility and Miscarriage Risk
There’s no clear evidence that cetirizine affects fertility. Small studies of pregnant individuals who used cetirizine found no increased risk of miscarriage beyond the background risk common in all pregnancies.
Congenital Anomalies (Birth Defect) Risk Assessment
Every pregnancy carries a 3-5% chance of birth defects, known as the background risk. Research involving over 1,300 babies exposed to cetirizine during the first trimester has shown that this medication does not increase this risk. Studies found no rise in birth defects compared to the general population.
Pregnancy Outcomes
Although research is limited on how cetirizine affects pregnancy outcomes like preterm delivery or low birth weight, clinical experiences have been reassuring. Studies conducted on pregnancies found no link between cetirizine use and complications such as preterm delivery or low birth weight.
According to Infant Risk Center at Texas Tech University Health Sciences Center:
The use of cetirizine has not been shown in clinical studies to increase the risk of teratogenicity during pregnancy. It is also now thought to be safe to use even during the first trimester of pregnancy. Cetirizine seems to possess some antiemetic properties, however, this still hasn’t adequately been tested using randomly controlled, double-blinded studies.
Long-term Child Development
Currently, no studies have explored whether exposure to cetirizine in the womb affects behavior or learning in childhood. However, this medication is generally regarded as safe during pregnancy.
Breastfeeding Safety
Yes, you can breastfeed while using cetirizine. The medication passes into breast milk in small amounts, and most infants tolerate it well. Compared to other antihistamines, cetirizine is less likely to cause drowsiness in both the nursing parent and baby. However, monitor your baby for signs of excessive drowsiness and contact your healthcare provider if you have concerns.
Key Takeaways
Cetirizine is considered safe for use during pregnancy when recommended by your healthcare provider.
Studies show no increased risk of birth defects or miscarriage with this medication.
Untreated allergy symptoms can significantly impact quality of life, highlighting the importance of maintaining appropriate treatment under your doctor’s supervision.
Most babies tolerate cetirizine well through breast milk, though monitoring for drowsiness is recommended.
As with any medication during pregnancy and breastfeeding, open communication with your healthcare provider is essential. They can help you weigh the benefits of treatment against any potential risks, ensuring the best possible outcome for you and your baby.
Sources
NIH, FDA, MothertoBaby, Infant Risk Center