ANTIHISTAMINICS

Antihistamines are a class of medications that help alleviate allergy symptoms by blocking the effects of histamine, a chemical released by the immune system during an allergic reaction. These medications are commonly used to treat symptoms such as sneezing, itching, runny nose, and watery eyes caused by allergies. Antihistamines work by binding to histamine receptors in the body, preventing histamine from binding and triggering an allergic response.

There are two main types of antihistamines: first-generation and second-generation. First-generation antihistamines, such as diphenhydramine, are known to cause drowsiness and have a shorter duration of action. Second-generation antihistamines, like loratadine and cetirizine, are less likely to cause drowsiness and have a longer-lasting effect.

Antihistamines are available in various forms, including tablets, capsules, liquids, and nasal sprays. They can be purchased over-the-counter or obtained through a prescription. It is important to consult a healthcare professional before starting any antihistamine treatment to ensure that it is safe and appropriate for your specific allergy symptoms.