Allergyna 120mg is an over-the-counter anti-allergy medication designed to relieve symptoms caused by seasonal allergic rhinitis (hay fever) and chronic urticaria (hives). It contains fexofenadine, a second-generation antihistamine (a drug that blocks allergic reactions) that provides non-drowsy relief from symptoms like sneezing, runny nose, watery eyes, and skin rashes.
This medication is manufactured by REXCEL and comes in film-coated tablet form, typically taken once daily depending on the doctor’s recommendation.
Common side effects include headache, nausea, or dizziness, but most people tolerate it well.
Key warnings: Not suitable for everyone-especially people with kidney problems, pregnant or breastfeeding women, and those taking other medications. Always consult a doctor.
Composition (Active Ingredients)
Fexofenadine Hydrochloride (120mg)
Fexofenadine is the active ingredient in Allergyna 120mg. It is a second-generation antihistamine (a newer type of allergy medicine) that works by blocking histamine-a chemical your body releases during an allergic reaction.
Unlike older antihistamines, fexofenadine does not cause significant drowsiness because it doesn’t easily cross into the brain.
Role of Fexofenadine:
- Blocks histamine to prevent allergy symptoms.
- Reduces inflammation caused by allergic responses.
- Offers long-lasting relief (up to 24 hours) from allergy symptoms.
Indications (Uses)
Allergyna 120mg is primarily used to treat allergic conditions such as:
Seasonal Allergic Rhinitis (Hay Fever)
This includes sneezing, itchy nose, runny nose, watery eyes, and nasal congestion due to exposure to pollen, dust, or mold.
How Allergyna 120mg helps: It blocks histamine and reduces inflammation in nasal passages, bringing fast relief from typical hay fever symptoms. Patients often report improved breathing and less eye irritation within a few hours of taking a dose.
Chronic Urticaria (Hives)
Hives are raised, red, itchy welts on the skin caused by an allergic reaction.
How Allergyna 120mg helps: By stopping histamine, the medication reduces itchiness, swelling, and redness. It’s particularly useful for people with recurring or long-term hives and has a low risk of sedation.
Mechanism of Action
How Does Allergyna 120mg Work?
When your body detects an allergen (like pollen or pet dander), it releases histamine, a chemical that triggers symptoms like sneezing, itching, and swelling.
Fexofenadine in Allergyna 120mg:
- Blocks histamine receptors (H1 receptors) in the body.
- Prevents histamine from attaching to these receptors.
- Stops the chain reaction that causes allergy symptoms.
Analogy: Think of histamine as a “key” trying to unlock a door (your allergy symptoms). Fexofenadine sits in the lock, blocking the key from entering, and therefore prevents the allergic reaction.
| 1 | Allergen enters the body |
| 2 | Histamine is released |
| 3 | Fexofenadine blocks histamine receptors |
| 4 | Allergy symptoms are reduced or prevented |
Dosage
The dosage of Allergyna 120mg depends on age, health condition, and severity of symptoms. Below is general guidance:
| Adults & Children over 12 years | 1 tablet (120mg) once daily |
| Children under 12 years | Not recommended unless prescribed |
| Elderly patients | Use with caution and under supervision |
| Pregnant/Breastfeeding women | Use only if clearly needed under medical advice |
| Kidney or liver issues | Doctor may adjust the dosage |
⚠️ Important: Always follow the doctor’s instructions or product label. Do not exceed the recommended dose.
Side Effects and Management
While Allergyna 120mg is generally well-tolerated, some individuals may experience side effects.
Common Side Effects:
- Headache
- Nausea
- Drowsiness (less common)
- Dry mouth
- Dizziness
Rare or Serious Side Effects:
- Difficulty breathing
- Chest pain
- Swelling of face or throat
How to Manage:
- For mild side effects, drink water and rest.
- If dizziness occurs, avoid driving or operating machines.
- If you experience severe allergic reactions, seek immediate medical attention.
“Most people experience little to no side effects with second-generation antihistamines like fexofenadine.” – Dr. Salma Youssef, Allergy Specialist
Warnings and Precautions
Before using Allergyna 120mg, consider the following:
| Pregnancy/Breastfeeding | Use only under medical supervision. |
| Kidney issues | May require lower doses or monitoring. |
| Liver conditions | Consult your doctor before using. |
| Drug sensitivity | Avoid if allergic to fexofenadine. |
| Driving/Machinery | May cause drowsiness or dizziness in rare cases. |
✔️ Always inform your doctor about your medical history before starting the medication.
Drug Interactions
Certain medications or substances can affect how Allergyna 120mg works.
Avoid taking Allergyna 120mg with:
- Antacids containing aluminum or magnesium (can reduce effectiveness)
- Ketoconazole (used for fungal infections)
- Erythromycin (antibiotic)
Tips:
- Take antacids at least 2 hours before or after taking Allergyna.
- Inform your doctor about all medications you’re currently taking, including herbal supplements.
Case Studies
Case Study 1: Teen with Hay Fever
Patient: 16-year-old student Symptoms: Sneezing, runny nose, itchy eyes during spring Treatment: One Allergyna 120mg tablet daily Result: Within 2 days, symptoms reduced significantly. No drowsiness reported.
Case Study 2: Adult with Chronic Hives
Patient: 32-year-old woman Symptoms: Itchy welts on arms and legs Treatment: Prescribed Allergyna 120mg once daily Result: Welts subsided within 3-4 days. Patient continued medication during flare-ups with excellent response.
Frequently Asked Questions (FAQs)
1. What is Allergyna 120mg used for?
It is used to relieve symptoms of hay fever and chronic hives.
2. Does Allergyna cause drowsiness?
It’s a non-drowsy antihistamine, but rare cases of mild drowsiness can occur.
3. Can I take Allergyna with food?
Yes, it can be taken with or without food.
4. Is Allergyna safe for children?
Only for children 12 and older, unless prescribed by a doctor.
5. Can I take Allergyna daily?
Yes, if prescribed. It’s often used once daily for allergy management.
6. How fast does Allergyna work?
Relief usually starts within 1 to 2 hours after taking the tablet.
7. Is it safe during pregnancy?
Only use if your doctor recommends it.
8. Can I drink alcohol while on Allergyna?
Avoid alcohol, as it may increase drowsiness in rare cases.
9. Can I take it with other antihistamines?
No. Taking multiple antihistamines can increase the risk of side effects.
10. What should I do if I miss a dose?
Take it as soon as you remember. If it’s almost time for the next dose, skip the missed dose.
Conclusion
Allergyna 120mg is a trusted, effective, and non-drowsy antihistamine ideal for treating hay fever and hives. With fexofenadine as its main ingredient, it offers fast and long-lasting relief while maintaining a good safety profile.
Always consult your healthcare provider before starting any medication, especially if you have underlying conditions or take other drugs. When used properly, Allergyna 120mg can make a significant difference in managing allergy symptoms and improving quality of life.
“Fexofenadine-based medications like Allergyna are a cornerstone in modern allergy treatment due to their effectiveness and minimal side effects.” – Dr. Ayman Fathy, Clinical Pharmacologist
If you found this article helpful, consider sharing it with friends or family members who struggle with seasonal allergies or chronic hives.
Dr. Ahmad Baker, PharmD
Senior Pharmacist & Health Educator
With over 23 years of clinical experience in hospital and community pharmacy across Egypt and Saudi Arabia, Dr. Ahmad specializes in reproductive health and pharmaceutical safety. He is dedicated to providing evidence-based guidance to empower patients in the MENA region.
Medical Disclaimer: This content is for educational purposes and reflects the latest pharmaceutical protocols. It is not a substitute for personal medical advice. Always consult Dr. Ahmad Baker or your healthcare provider before starting any treatment.

