Over-the-counter (OTC) first-generation H1-antihistamines used for the treatment of nasal allergies include: ...

This observation led Swedish investigators to propose, in 1948, that there are two types of receptors sensitive to histamine, and close to two decades later British researchers gave the name H1 to ...

In vitro tests have demonstrated that second-generation antihistamines have improved H 1-receptor specificity and a slower dissociation rate compared with first-generation antihistamines ...

So you tend to want to take an antihistamine which basically just helps dry up some of that mucus and stop producing it. So you won't have all that drainage going back there. When you feel like ...

Over-the-counter antihistamines were among the most common substances involved in these adverse events, along with prescription antidepressants, painkillers and illegal synthetic cannabinoids.

your go-to solution should be over-the-counter (OTC) antihistamines, which you can readily find in the pharmacy, says Adnan Mir, MD, PhD, a pediatric dermatologist, dermatopathologist, and an ...

For mild hives, your doctor may recommend an over-the-counter, second-generation H1 antihistamine such as fexofenadine (Allegra), loratadine (Claritin), cetirizine (Zyrtec), or desloratadine ...

In the following section, the various methods used to evaluate antihistamines illustrate the developmental process for evaluating the efficacy of the H 1-receptor antagonist desloratadine.