Antazoline
Antazoline (pronounced an-TAZ-oh-leen) is a first-generation antihistamine with anticholinergic properties that is used primarily to relieve nasal congestion. It is also used in eye drops to relieve itchy, watery eyes caused by allergies.
Etymology
The term "Antazoline" is derived from its chemical structure, which is an imidazoline derivative. The prefix "anta-" is derived from the word "antagonist", referring to its action against histamine receptors.
Pharmacology
Antazoline works by blocking the effects of histamine, a substance in the body that causes allergic symptoms. It is a competitive antagonist at the H1 receptor, which means it prevents histamine from binding to this receptor and causing symptoms such as itching, sneezing, runny nose, and watery eyes.
Uses
Antazoline is used in the treatment of allergic conditions such as hay fever and urticaria. It is also used in eye drops to relieve the symptoms of allergic conjunctivitis. In some countries, it is combined with naphazoline in eye drops to provide relief from the symptoms of eye allergies.
Side Effects
Common side effects of antazoline include drowsiness, dry mouth, and blurred vision. Less common side effects can include dizziness, headache, and stomach upset.
Related Terms
External links
- Medical encyclopedia article on Antazoline
- Wikipedia's article - Antazoline
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