Allegra and Claritin are over-the-counter (OTC) medications that can help relieve allergy symptoms. They’re both antihistamines, which work by blocking histamine from binding to H1 receptors.

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

First-generation antihistamines, like Benadryl, more easily cross the blood-brain barrier and impact acetylcholine, a key ...

Hay fever can be annoying at the best of times. But this year, many people are reporting their usual symptoms are worse than ...

FDA warns of severe itching risk when stopping long-term use of allergy medications cetirizine and levocetirizine, affecting ...

So, for many of us, the only way to get through the days without sneezing uncontrollably or walking around with bloodshot ...

They significantly favoured loratadine in combination with betamethasone ... systemic low dosage of corticosteroids with and without antihistamine therapy during acute severe exacerbations of ...