This article will look at how antihistamines work, as well as the differences between first-, second-, and third-generation antihistamines and their side effects. Share on Pinterest A person may ...

Antihistamines are a class of drugs that help to treat the symptoms of various allergies. The main difference between first-generation and second- and third-generation antihistamines is that the ...

"This risk is avoided with second and third-generation antihistamines like cetirizine (Zyrtec), levocetirizine (Xyzal), loratadine (Claritin), desloratadine (Clarinex), and fexofenadine (Allegra)." ...

Taking too much antihistamine can lead to adverse side effects and a potential antihistamine overdose. Signs may include fast heart rate, fever, and dilated pupils. People should follow the dosage ...

Many healthcare professionals recommend using second- or third-generation antihistamines to treat mild to moderate allergy symptoms, including congestion, runny nose, and watery, itchy eyes.

Second-generation antihistamines don’t make you sleepy, while first-generation antihistamines do. Other OTC options include the antihistamine nasal spray azelastine (Astepro) and eye drops such ...

first-generation antihistamines; however ... and drug half-life (69%). Less than one-third of allergists reported price of drug (32%) or insurance coverage of drug (26%) as antihistamine selection ...

Initially a minimally sedating second or third-generation antihistamine should be given at a once-daily oral dosing (see Table 3). Patients often have a preference of one over another. It is ...

In a recent study published in JAMA Network Open, researchers assessed associations between prescriptions of first-generation-type antihistamine drugs and seizures among children. Study ...

First-generation antihistamines are linked to a 22% higher risk for seizures in children, new research shows. The risk appears to be most pronounced in children aged 6-24 months. Researchers in ...