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 ...

Different medications can treat allergies, including steroids and allergy shots, but one of the first things to try is an antihistamine. These are over-the-counter (OTC) and prescription ...

Zyretc and Claritin are in the same class of medications ... feel drowsy or otherwise affect alertness than older, first-generation antihistamines. The labeling of Zyrtec says that a person ...

Diphenhydramine is the active ingredient in countless over-the-counter medications. But experts say there are serious risks ...

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 ...

Antihistamines may be first generation (sedating) or second generation (nonsedating). These two types may lead to different reactions if a person takes too much. Second generation antihistamines ...

In terms of effectiveness, both provide long-lasting, all-day relief for allergies and hives, with minimal sedation compared to first-generation antihistamines. The choice between Xyzal and Zyrtec ...

Some people who take one 24-hour antihistamine before bed say that within two to four weeks the skin around their eyes looks tighter, but talk to your GP first. 4. Prolonged use could raise risk ...

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 ...