Drug Class: Second-Generation Antihistamine (Non-Sedating) | Form: Oral Tablet | Prescription Status: Prescription Only (Rx) — DRAP Registered
What is Kestine 10mg Tablet?
Kestine 10mg contains Ebastine — a second-generation, non-sedating antihistamine that relieves allergy symptoms without causing the heavy drowsiness associated with older antihistamines. It works by blocking histamine H1 receptors — preventing histamine, the body's own chemical trigger for allergic reactions, from causing symptoms like sneezing, itching, and runny nose. Because Ebastine does not cross easily into the brain, it provides effective allergy relief while allowing patients to remain alert and functional throughout the day. A single daily dose provides up to 24-hour symptom control.
What is Kestine 10mg Used For?
- Allergic rhinitis — seasonal hay fever and year-round nasal allergy symptoms including sneezing, runny nose, and nasal itching (موسمی اور سالانہ الرجی)
- Chronic urticaria — persistent itchy hives and skin welts caused by allergic reactions (چھپاکی / جلد پر خارش اور سوجن)
- Allergic conjunctivitis — itchy, watery, red eyes due to allergy (آنکھوں کی الرجی)
- Skin allergy symptoms — generalised itching and rash caused by allergic triggers (جلد کی الرجی)
How Does Kestine 10mg Work?
When the body encounters an allergen — such as pollen, dust, or pet hair — it releases histamine, a chemical that binds to H1 receptors in the nose, eyes, skin, and airways, triggering sneezing, itching, swelling, and watery discharge. Ebastine selectively blocks these H1 receptors, preventing histamine from binding and stopping the allergic response at its source. Being a second-generation antihistamine, Ebastine has low penetration into the brain — meaning it controls peripheral allergy symptoms effectively while causing significantly less sedation than first-generation antihistamines like Chlorpheniramine.
Dosage and Administration
⚠️ Always take exactly as prescribed by your doctor. Do not exceed the recommended dose. Consult your doctor before use if you have liver or kidney problems.
| Indication | Usual Adult Dose | Frequency | Maximum Daily Dose |
|---|---|---|---|
| Allergic rhinitis | 1 tablet (10mg) | Once daily | 1 tablet |
| Chronic urticaria | 1 tablet (10mg) | Once daily | 1 tablet |
| Severe allergies (doctor's advice) | 2 tablets (20mg) | Once daily | 2 tablets |
How to Take:
- Swallow the tablet whole with a full glass of water
- May be taken with or without food
- Take at the same time each day for consistent allergy control
- Best taken in the morning for daytime allergy coverage
Active Ingredients
| Ingredient | Strength per Tablet |
|---|---|
| Ebastine | 10mg |
Who Should NOT Take Kestine 10mg?
Do not take if you:
- Are allergic to Ebastine or any ingredient in the tablet
- Have a rare hereditary condition causing problems with galactose (if tablet contains lactose)
- Are under 12 years of age — consult your doctor for age-appropriate formulations
- Have a known history of cardiac arrhythmia or prolonged QT interval
Always consult your doctor before taking Kestine if you have:
- Liver disease — Ebastine is metabolised in the liver; dose adjustment may be needed
- Kidney disease (گردے کی بیماری)
- Heart rhythm problems or are taking medicines that affect heart rhythm
- Low potassium or magnesium levels in the blood
- Are pregnant or breastfeeding
- Are taking antifungal medicines (Ketoconazole, Itraconazole) or certain antibiotics — serious interaction risk
Side Effects
Common Side Effects:
- Mild headache
- Dry mouth
- Mild drowsiness — less common than with first-generation antihistamines but possible
- Stomach discomfort or nausea
- Fatigue
Serious Side Effects — Stop Taking and Seek Medical Help Immediately:
- Cardiac arrhythmia (irregular heartbeat / دل کی غیر معمولی دھڑکن) — rare but serious; Ebastine at high doses or in combination with certain medicines can prolong the QT interval on the heart's electrical activity
- Severe allergic reaction — swelling of face, lips, tongue or throat, difficulty breathing, widespread rash (یہ طبی ہنگامی صورتحال ہے)
- Severe liver reaction — yellowing of skin or eyes (یرقان), dark urine, extreme fatigue — stop immediately and seek medical attention
- Severe dizziness or fainting — may indicate heart rhythm disturbance
Drug Interactions
| Medicine / Substance | Possible Interaction |
|---|---|
| Ketoconazole / Itraconazole (antifungals) | Most critical — significantly increase Ebastine blood levels, raising QT prolongation and cardiac arrhythmia risk; avoid combination |
| Erythromycin / Clarithromycin (antibiotics) | Increase Ebastine levels and QT prolongation risk — avoid or use with caution under medical supervision |
| Other QT-prolonging medicines (e.g., certain antiarrhythmics, antipsychotics) | Additive risk of dangerous heart rhythm disturbance — inform your doctor of all medicines |
| Grapefruit juice | Can increase Ebastine blood levels — avoid consuming grapefruit or grapefruit juice with Kestine |
| Alcohol (شراب) | May increase sedative effect — avoid during treatment |
| Diuretics causing low potassium (e.g., Furosemide) | Low potassium increases QT prolongation risk with Ebastine |
| Other antihistamines | Additive antihistamine effects — avoid combining without medical advice |
Storage Instructions
- Store below 25°C in a cool, dry place
- Protect from moisture and direct sunlight
- Keep in original blister pack until use
- Keep out of reach of children (بچوں کی پہنچ سے دور رکھیں)
- Do not use after the expiry date printed on the pack
Frequently Asked Questions (FAQs)
Q: Will Kestine 10mg make me feel drowsy? Kestine is a non-sedating antihistamine and is much less likely to cause drowsiness than older antihistamines — however, mild fatigue can occasionally occur, so caution is advised when driving initially.
Q: Can I take Kestine 10mg every day for long-term allergy control? Yes — Kestine can be used for ongoing allergy management, but long-term use should be reviewed periodically by your doctor to ensure it remains appropriate for your condition.
Q: Why is grapefruit juice a problem with Kestine? Grapefruit juice blocks enzymes in the gut that normally break down Ebastine — this causes higher Ebastine levels in the blood, increasing the risk of side effects including heart rhythm changes.
Q: Can Kestine 10mg be taken during pregnancy? Safety data for Ebastine during pregnancy is limited — always consult your doctor before taking any antihistamine while pregnant, as safer alternatives with a more established pregnancy safety record may be preferred.
Medical Disclaimer: This information is for general awareness only and does not replace advice from your doctor or pharmacist. Always take Kestine 10mg exactly as prescribed and inform your doctor of all other medicines you are currently taking.