Quifenadine is an antihistamine medication used to treat symptoms associated with allergies, including sneezing, itching, and runny or stuffy nose. It works by blocking the effect of histamine, a substance produced by the body during an allergic reaction. It is available in tablet, capsule, and syrup form. Quifenadine may also be used to treat other conditions as determined by your doctor.
Quifenadine is a second-generation antihistamine medication that is primarily sold in nations formerly part of the Soviet Union . It is sold under the brand name Fencarol.
Quifenadine works by blocking histamine H1 receptors in peripheral tissues and activating the enzyme diaminoxidase (histaminase), which lowers histamine levels in tissues. It's used to treat allergic rhinitis (hay fever), seasonal allergies, allergic conjunctivitis, hives, and other allergic reactions brought on by food or drugs.
Here's some additional information about Quifenadine:
- Chemical classification: Quinuclidine derivative
- Routes of administration: Oral (tablets) and intramuscular injection
- Mechanism of action: Blocks histamine H1 receptors and activates the enzyme diaminoxidase (histaminase)
- Advantages: Compared to other antihistamines like diphenhydramine, quifenadine has a longer duration of action and is more effective.