Fexofenadine hydrochloride

Fexofenadine hydrochloride (pronounced as fex-oh-fen-a-deen hy-dro-chlor-ide) is a type of antihistamine used to relieve allergy symptoms such as runny nose, watery eyes, sneezing, itching eyes/nose, and itching of the throat or skin. It is also used to relieve symptoms of urticaria (hives) such as red, itchy raised areas of the skin, including itching and rash.

Etymology

The term "Fexofenadine" is derived from the chemical name for the compound, which is (RS)-2-[4-[1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-piperidyl]butyl]phenyl]-2-methylpropanoic acid. The "hydrochloride" part of the name refers to the presence of hydrochloride ions in the compound, which is common in many pharmaceutical drugs.

Pharmacology

Fexofenadine hydrochloride is a second-generation antihistamine, which means it is less likely to cause drowsiness and sedation than older, first-generation antihistamines. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms.

Usage

Fexofenadine hydrochloride is taken by mouth, usually once or twice a day. It is available as a tablet, capsule, or liquid form. It is also available in combination with other medications to treat multiple symptoms of allergies.

Side Effects

Common side effects of Fexofenadine hydrochloride include headache, drowsiness, nausea, and dizziness. Serious side effects are rare, but may include difficulty breathing, swelling of the face or throat, and severe rash.

Related Terms

• Antihistamine
• Histamine
• Urticaria
• Second-generation antihistamine

External links

• Medical encyclopedia article on Fexofenadine hydrochloride
• Wikipedia's article - Fexofenadine hydrochloride

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