The symptoms caused by pollen allergy in pregnant women are similar to those of the general population: runny nose, sneezing, itchy eyes, nose or throat, cough, congestion… In some women, allergic symptoms can even reach intensify during the gestation. In any case, those who are allergic to pollen have an effective solution in antihistamines to alleviate the uncomfortable symptoms during the months with more pollen, but… what happens in the case of pregnant?Can they take antihistamines? Can these drugs affect the fetus? Dr. Susan Judas clarifies doubts.

Can antihistamines affect the fetus?

Antihistamines can affect the fetus in different ways, depending on the type of antihistamine and the time of pregnancy when taken. Some studies have linked the use of antihistamines in the first trimester of pregnancy to an increased risk of congenital malformationwhile other studies have not found a clear association.

At what point in pregnancy is it most dangerous to take antihistamines?

In general, it is recommended avoid the use of antihistamines during first trimester of pregnancy, unless absolutely necessary to treat a serious medical condition, when the risk-benefit ratio leans towards the latter. At the second and third trimesterSome antihistamines may be considered safe for occasional use under medical supervision.

When can a pregnant woman take antihistamines?

The use of antihistamines in pregnant women is recommended only if the benefits outweigh the potential risks for the mother and fetus, as in the case of severe allergic reactionsalthough in this case other drugs are usually used or to treat a chronic disease that causes severe allergic symptoms with a significant reduction in quality of life.

What kind of antihistamines can pregnant women take?

It is recommended that pregnant women use first-generation antihistamines such as diphenhydramine over second-generation antihistamines such as loratadine or cetirizine because there are more years of experience with their use during pregnancy and they have not been associated with teratogenicity (malformations) in humans. Even so, limited evidence suggests that loratadine or cetirizine are also safe. But ever it is necessary to consult a doctor before taking any medicine.

Can pregnant women be vaccinated against allergies?

Pregnant women can get an allergy shot if your doctor considers appropriate. Some allergy shots contain small amounts of allergens, which can trigger an allergic response in some people. Therefore, it is important to discuss the possible risks and benefits with your doctor before receiving an allergy shot during pregnancy.

How to prevent allergy symptoms if you can’t take medicine?

There are some measures that can help reduce allergy symptoms in pregnant women who cannot take medication. These include avoid triggers the allergies you developed, such as pollen, dust, and animals; use a humidifier keep the air moist; use a net to avoid exposure to insects if he reacts to your bite and wear protective clothing to reduce exposure to allergens such as solar urticaria.