What is Telfast?
Telfast (fexofenadine) is a non-sedating antihistamine used to relieve symptoms of seasonal and perennial allergic rhinitis, as well as chronic idiopathic urticaria. It belongs to a class of drugs known as H1 antihistamines, which work by blocking the effects of histamine, a chemical messenger that triggers allergy symptoms such as sneezing, runny nose, itchy eyes, and hives.
Safety of Daily Telfast Use
Telfast is generally considered safe for daily use. In clinical trials, it has been shown to be well-tolerated, with a low incidence of side effects. Long-term studies have also demonstrated the safety of daily Telfast use for periods of up to two years.
Recommended Dosage and Precautions
The recommended daily dosage of Telfast for adults and children 12 years and older is 180 mg once daily. For children 6 to 11 years old, the recommended dosage is 30 mg twice daily.
It is important to follow the dosage instructions provided by your doctor or pharmacist. Do not take more Telfast than prescribed, as it may increase the risk of side effects.
Common Side Effects
The most common side effects of Telfast include:
- Headache (10%)
- drowsiness (6%)
- nausea (3%)
- dizziness (2%)
- fatigue (1%)
Rare but Serious Side Effects
In rare cases, Telfast may cause serious side effects, such as:
- Anaphylaxis (a severe allergic reaction)
- Angioedema (swelling of the face, lips, tongue, or throat)
- Liver problems
- Heart rhythm problems
Who Should Not Take Telfast?
Telfast is not recommended for people who:
- Are allergic to fexofenadine or any other ingredients in Telfast
- Have severe liver disease
- Are taking certain medications, such as ketoconazole or erythromycin
Pregnancy and Breastfeeding
Telfast should not be used during pregnancy unless the potential benefits outweigh the risks. It is also not recommended for use by breastfeeding mothers.
Drug Interactions
Telfast may interact with certain medications, including:
- Antacids
- Erythromycin
- Ketoconazole
It is important to inform your doctor about all the medications you are taking, including over-the-counter drugs and supplements, before starting Telfast.
Conclusion
Telfast is generally safe for daily use in adults and children 12 years and older. However, it is important to follow the recommended dosage and precautions provided by your doctor or pharmacist. If you experience any serious side effects, stop taking Telfast and seek medical attention immediately.
Additional Information
Is it safe to take Telfast long-term?
Telfast has been shown to be safe for long-term use, with studies demonstrating its safety for periods of up to two years.
Can I take Telfast with other medications?
Telfast may interact with certain medications, so it is important to inform your doctor about all the medications you are taking before starting Telfast.
What should I do if I miss a dose of Telfast?
If you miss a dose of Telfast, take it as soon as possible. However, if it is close to the time for your next dose, skip the missed dose and continue taking Telfast as scheduled. Do not take double doses.
What are the alternatives to Telfast?
There are several other H1 antihistamines available, including:
- Loratadine
- Cetirizine
- Desloratadine
Your doctor can help you choose the right antihistamine for you.
