What is Cetirizine (antihistamine)?
Zyrtec is an over-the-counter antihistamine medication used to treat symptoms of allergies and allergic reactions, such as itching, redness, and swelling in the eyes, nose, mouth, and throat. It works by blocking the action of histamine on receptors, thereby reducing the symptoms of allergy. Cetirizine is also available under the brand name Zyrtec OTC for relief from common cold, sneezing, runny or stuffy nose, and itchy or watery eyes caused by hay fever.
What is Cetirizine (antihistamine) used for?
Introducing Cetirizine: A Popular Antihistamine Medication
Cetirizine, also known as Zyrtec in its branded form, is an over-the-counter (OTC) medication that belongs to the class of antihistamines. It is a synthetic compound that mimics the effects of a naturally occurring chemical called histamine, which plays a crucial role in various bodily functions, including allergic reactions. Cetirizine works by blocking the action of histamine at its receptor sites on blood vessels and mucous membranes, thereby reducing inflammation, itching, and other symptoms associated with allergic conditions.
Uses and Mechanism of Action
Cetirizine is primarily used to treat various types of allergies, including hay fever (allergic rhinitis), itching and redness caused by insect bites or stings, and hives. This medication effectively alleviates symptoms such as sneezing, runny nose, congestion, and skin irritation. By selectively inhibiting the histamine-1 receptor, cetirizine helps to stabilize mast cells and reduce the release of histamine, leading to a decrease in allergic reactions. As an antihistamine, it is also effective in reducing the risk of complications from seasonal allergies, allowing individuals to carry out their daily activities without being hindered by severe symptoms.
Cetirizine (antihistamine) side effects
• Dizziness • Headache • Stomach pain • Nausea • Vomiting • Diarrhea • Abdominal cramps • Dry mouth • Constipation • Sleepiness • Muscle weakness • Fatigue • Allergic reaction (rare) • Seizure (rare)
Disclaimer
The content on this website is for informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. The information provided here is based on general research and may not apply to individual circumstances. We do not guarantee the accuracy or completeness of any content on this website. Always consult with a healthcare professional before making any changes to your medication or health routine.