Notice: Images are for illustration only and may not reflect the exact product you receive. Brand-name medications may look different depending on their country of origin—Canadian versions, for example, often include a "PR" symbol on the packaging. Rest assured, the medication, dosage, and active ingredients will be exactly as prescribed. Canada Pharmacy Store is committed to your health and safety, and we work only with licensed pharmacies to ensure you receive trusted, high-quality medication every time.
General Medication Fact Sheet for Telfast
| Field | Information |
|---|---|
| Medication Name | Telfast |
| Generic Name | Fexofenadine |
| Purpose | Antihistamine used to relieve allergy symptoms |
| Mechanism of Action | Selectively inhibits peripheral H1-receptors |
| Dosage Forms | Oral tablets |
| Available Strengths | 30 mg, 60 mg, 180 mg |
| Dosage Frequency | Once or twice daily, depending on the strength and condition being treated |
| Common Side Effects | Headache, drowsiness, nausea, dry mouth |
| Serious Side Effects | Rare: Allergic reactions (rash, itching, swelling, difficulty breathing) |
| Drug Interactions | Erythromycin, ketoconazole, antacids containing aluminum or magnesium |
| Important Notes | Avoid taking with fruit juices (apple, grapefruit, orange) as they may reduce absorption. |
| Storage | Store at room temperature away from moisture and light |
| Missed Dose | Take as soon as you remember; skip if it’s almost time for your next dose. Do not double the dose. |
| Alternatives | Cetirizine (Zyrtec), Loratadine (Claritin), Diphenhydramine (Benadryl) |
Telfast Alternatives
| Medication | Mechanism of Action | Notes |
|---|---|---|
| Cetirizine (Zyrtec) | Selective H1 receptor antagonist | May cause more drowsiness than fexofenadine in some individuals. |
| Loratadine (Claritin) | Selective H1 receptor antagonist | Generally considered non-drowsy. |
| Diphenhydramine (Benadryl) | First-generation H1 receptor antagonist | More likely to cause drowsiness; useful for nighttime allergy relief. |
| Levocetirizine (Xyzal) | Selective H1 receptor antagonist | Similar to cetirizine, may cause drowsiness. |
Telfast Side Effects
| Common Side Effects | Serious Side Effects |
|---|---|
| Headache | Allergic reactions (rash, itching, swelling, difficulty breathing) |
| Drowsiness | Rare: Severe allergic reactions (anaphylaxis) |
| Nausea | |
| Dry Mouth | |
| Dizziness |
Telfast Dosage Guide
| Condition | Starting Dose | Maintenance Dose | Administration Notes |
|---|---|---|---|
| Seasonal Allergies | 60 mg | 60 mg twice daily or 180 mg once daily | Take with water. Avoid fruit juices. |
| Chronic Urticaria (Hives) | 60 mg | 60 mg twice daily or 180 mg once daily | Take with water. Avoid fruit juices. |
