Cetirizine tablets are a popular and widely used antihistamine medication in Australia, primarily prescribed to relieve allergy symptoms. Whether you’re dealing with seasonal hay fever, year-round allergic rhinitis, or chronic hives, cetirizine tablets offer effective and convenient relief. This blog post provides an in-depth look at cetirizine tablets, including how they work, recommended dosages, safety tips, and availability in Australia.
What is Cetirizine Tablet?
Cetirizine is a second-generation antihistamine that works by blocking histamine H1 receptors in the body. Histamine is a chemical released during allergic reactions that causes symptoms such as sneezing, itching, watery eyes, and runny nose. By preventing histamine from binding to its receptors, cetirizine reduces these uncomfortable allergy symptoms without causing significant drowsiness, which is common with older antihistamines.
Uses of Cetirizine Tablets in Australia
Cetirizine tablets are commonly used to treat:
- Seasonal Allergic Rhinitis (Hay Fever): Relieves sneezing, nasal congestion, runny nose, itchy nose, and watery eyes caused by pollen and other seasonal allergens.
- Perennial Allergic Rhinitis: Manages year-round allergy symptoms triggered by indoor allergens such as dust mites, pet dander, and mould.
- Chronic Idiopathic Urticaria (Hives): Helps reduce itching, redness, and swelling associated with chronic hives in adults and children over 6 years.
Recommended Dosage
According to Australian clinical guidelines and product information:
- Adults and children aged 12 years and over: The usual dose is 10 mg (one tablet) once daily, with or without food. Some adults, especially those with kidney problems, may require a lower dose of 5 mg daily. In certain cases, doctors may increase the dose to a maximum of 20 mg per day (two tablets).
- Children aged 6 to 12 years: The typical dose is 5 mg (half a tablet) twice daily.
- Children under 6 years: Cetirizine tablets are generally not recommended; liquid formulations may be preferred under medical advice.
Tablets should be swallowed whole with water and can be taken at any time of the day. If cetirizine causes drowsiness, taking it in the evening or at bedtime is advisable.
Safety and Precautions
- Side Effects: Cetirizine is generally well tolerated. Common side effects include headache, dry mouth, and mild drowsiness. Serious allergic reactions are rare but require immediate medical attention.
- Pregnancy and Breastfeeding: Consult your healthcare provider before use.
- Kidney Problems: Dosage adjustments may be necessary.
- Alcohol and Driving: Cetirizine may cause drowsiness in some people and can increase the effects of alcohol. Avoid driving or operating machinery if affected.
- Missed Dose: Take it as soon as you remember unless it’s close to the next dose. Do not double the dose.
Availability in Australia
Cetirizine tablets are widely available over-the-counter in Australian pharmacies under various brand names such as Zyrtec, Zilarex, and generic cetirizine products. They come in different pack sizes, commonly in 10 mg strength tablets.
How to Use Cetirizine Tablets Effectively
- Take the medication regularly as prescribed to maintain symptom control.
- Avoid exceeding the recommended dose.
- If symptoms persist or worsen, consult your doctor.
- Store tablets below 25°C and keep out of reach of children.
Summary
Cetirizine tablets are a trusted and effective option for managing allergy symptoms in Australia. With once-daily dosing, minimal side effects, and broad availability, they provide convenient relief for hay fever, perennial allergies, and chronic hives. Always follow your healthcare provider’s instructions and consult them if you have any concerns or underlying health conditions