Antihistamines can be roughly divided into topical and systemic. There is only one topical antihistamine, Astelin, which is a nasal spray has proven beneficial to some. It can still be mildly sedating and has a bad taste.Systemic antihistamines can be roughly divided into sedating and non-sedating types. Interestingly, the sedating ones are over-the-counter, while the safer non-sedating antihistamines are generally prescription. This is all economically-based.

Common Anthistimane Brands

Many brands of antihistamines are now available over-the-counter.

Side Effects of Antihistamines

The main side effect of OTC antihistamines is drowsiness.

Using Antihistamines

OTC antihistamines are overused, and should only be used to treat the appropriate symptoms.

Posted by: on