Definition
Cetirizine is a second-generation antihistamine medication used to relieve symptoms of allergic reactions
Indications for Use
Allergic Rhinitis: Cetirizine is commonly used to treat symptoms of allergic rhinitis (hay fever), including sneezing, runny or itchy nose, and itchy or watery eyes
Urticaria (Hives): It is also effective in treating itching and hives caused by various allergic reactions
Dosage
For adults and children aged 6 years and older
The typical starting dose is 5 mg or 10 mg once daily, depending on the severity of symptoms and individual response
In some cases, a higher dose of up to 20 mg per day may be prescribed for more severe symptoms
Dosage adjustments may be necessary for individuals with liver or kidney impairment
Drug Interactions
Cetirizine may interact with certain medications, including
Central nervous system depressants (e.g., alcohol, benzodiazepines) can increase drowsiness when taken with cetirizine
Other antihistamines or medications that have anticholinergic effects may potentiate side effects such as dry mouth, constipation, and urinary retention
Cetirizine is generally considered safe to use with most other medications, but it's important to inform your healthcare provider about all medications, supplements, and herbal products you are taking
Side Effects
Common side effects of cetirizine may include drowsiness, dry mouth, headache, dizziness, and fatigue
In rare cases, cetirizine can cause more serious side effects such as allergic reactions, palpitations, and liver dysfunction
It's important to seek medical attention if you experience severe or unusual side effects while taking cetirizine
Cetirizine is usually well-tolerated and provides effective relief for allergy symptoms, but it's essential to use it as directed by your healthcare provider and to be aware of potential interactions or side effects
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