Which medication category is known for its effect on allergies?

Antihistamines are specifically designed to relieve or prevent symptoms associated with allergies. When an allergen is encountered, the body releases histamine, a chemical that causes allergy symptoms like itching, sneezing, and swelling. Antihistamines work by blocking the effects of histamine, thereby alleviating these symptoms. They are commonly used for treating conditions such as hay fever, allergic rhinitis, and reactions to insect bites or stings.

In contrast, anticoagulants are medications that help prevent blood clots, antipsychotics are used to manage psychiatric disorders, and anticonvulsants are employed in the treatment of seizures. Each of these categories serves distinct medical purposes unrelated to allergy management. This distinction underscores why antihistamines are the relevant choice for addressing allergens and their associated symptoms.