Levocetirizine is an anti-allergy medicine, specifically an oral antihistamine, used to treat allergic conjunctivitis when it occurs along with rhinitis.
| Drug class | Antihistamine (Oral) |
|---|---|
| Type | Single |
| Forms | Tablet / Syrup |
| Common strength | 5 mg |
| Common Indian brands | Xyzal, Levocet, 1-Al |
| Prescription status | Prescription / OTC |
What Levocetirizine is used for
Levocetirizine is a widely used medicine at Pristine Eye Hospitals, prescribed to help patients experiencing:
- Allergic conjunctivitis with rhinitis: This means you have allergy symptoms affecting both your eyes (allergic conjunctivitis) and your nose (rhinitis) at the same time.
Allergic conjunctivitis causes your eyes to become red, itchy, watery, and sometimes swollen. Rhinitis, on the other hand, leads to symptoms like a runny nose, sneezing, nasal congestion, and an itchy nose. Levocetirizine helps to relieve these combined symptoms, making you feel more comfortable.
How it works
Levocetirizine belongs to a group of medicines called antihistamines. When your body encounters something it’s allergic to (like pollen, dust mites, or pet dander), it releases a natural substance called histamine. Histamine is responsible for many of the uncomfortable symptoms you experience during an allergic reaction, such as itchy eyes, a runny nose, and sneezing.
Levocetirizine works by blocking the action of histamine. By doing so, it helps to reduce the allergic symptoms in both your eyes and nose. It is known as a ‘non-sedating’ antihistamine, which means it is less likely to make you feel drowsy compared to some older antihistamines, allowing you to carry on with your daily activities more easily.
How it’s used
Levocetirizine is available in tablet or syrup form and is taken orally (by mouth). For adults, the typical dose is 5 mg once a day. It is important to follow the specific instructions given by your ophthalmologist or doctor regarding when and how to take this medicine.
You can usually take Levocetirizine with or without food. Try to take it at the same time each day to help you remember. If you are prescribed the syrup form, make sure to use the measuring device provided to ensure you take the correct dose.
Do not exceed the recommended dose, and do not stop taking the medicine suddenly unless advised by your doctor, even if your symptoms improve. Your doctor will guide you on the duration of treatment based on your condition.
Always follow your ophthalmologist’s exact instructions.
Brands available in India
- Xyzal
- Levocet
- 1-Al
Brand availability and pricing vary; confirm with your pharmacist.
Good to know
Prescription eye medicine — use only as directed by a qualified ophthalmologist. This page is for general education and is not a substitute for professional medical advice, diagnosis or a prescription. Do not self-medicate or reuse an old prescription.
Precautions & side effects
Levocetirizine is a very widely used medicine in India for treating combined eye and nose allergies. While generally well-tolerated, it’s important to be aware of some general precautions:
- Prescription Medicine: Levocetirizine is a prescription medicine, though it can also be available over-the-counter in some strengths or formulations. Always use it only as directed by a qualified ophthalmologist or doctor.
- Do Not Self-Medicate: This page is for general education and is not a substitute for professional medical advice, diagnosis, or a prescription. Do not self-medicate or reuse an old prescription. Always consult your doctor for a proper diagnosis and treatment plan.
- Driving and Operating Machinery: Although Levocetirizine is considered a non-sedating antihistamine, some individuals might still experience mild drowsiness. It’s advisable to see how you react to the medicine before driving or operating heavy machinery.
- Alcohol: Avoid consuming alcohol while taking Levocetirizine, as it may increase the risk of drowsiness or other side effects.
- Other Medicines: Inform your doctor about all other medicines you are currently taking, including over-the-counter drugs, herbal supplements, and vitamins, to avoid potential interactions.
- Pregnancy and Breastfeeding: If you are pregnant, planning to become pregnant, or breastfeeding, discuss this with your doctor before starting Levocetirizine.
- Kidney Disease: If you have kidney problems, your doctor may need to adjust your dose. Make sure to inform your doctor about any existing medical conditions.
- Allergic Reaction: If you experience any signs of a severe allergic reaction (like rash, itching/swelling, severe dizziness, trouble breathing), seek immediate medical attention.
Understanding Allergic Conjunctivitis and Rhinitis
Allergies are very common, and they happen when your body’s immune system overreacts to harmless substances called allergens. These allergens can be anything from pollen (from trees, grasses, or weeds), dust mites, pet dander, or even certain moulds. When you come into contact with an allergen, your body releases chemicals, including histamine, which cause the uncomfortable symptoms we associate with allergies.
Allergic Conjunctivitis specifically affects your eyes. The conjunctiva is the clear membrane that covers the white part of your eye and the inside of your eyelids. When it becomes inflamed due to an allergic reaction, your eyes can become very itchy, red, watery, and sometimes feel gritty or burning. Your eyelids might also swell. It’s important not to rub your eyes excessively, as this can worsen the irritation and potentially lead to infection.
Allergic Rhinitis, often called hay fever, affects your nose. Symptoms include a runny or stuffy nose, sneezing, itching in your nose, throat, or roof of your mouth, and sometimes post-nasal drip. When allergic conjunctivitis and rhinitis occur together, it can be quite bothersome, affecting your comfort and daily activities. Levocetirizine is designed to address both these sets of symptoms simultaneously.
General Advice for Managing Eye Allergies
While medicines like Levocetirizine are very effective, there are also several steps you can take to help manage your eye allergies and reduce your exposure to allergens:
- Identify and Avoid Triggers: Try to figure out what triggers your allergies and then do your best to avoid them. If pollen is an issue, stay indoors when pollen counts are high, especially in the morning. Keep windows closed and use air conditioning.
- Maintain Cleanliness: Regularly clean your home to reduce dust mites and pet dander. Use allergen-proof covers on mattresses and pillows. Wash bedding frequently in hot water.
- Personal Hygiene: Wash your hands frequently, especially after touching pets or being outdoors. Avoid touching or rubbing your eyes, as this can transfer allergens and worsen irritation.
- Protective Eyewear: When outdoors, especially on windy days, consider wearing sunglasses to protect your eyes from pollen and other airborne allergens.
- Contact Lenses: If you wear contact lenses, they can sometimes trap allergens. Discuss with your ophthalmologist if you should reduce contact lens wear during allergy season or switch to daily disposables. Always ensure proper contact lens hygiene.
- Cool Compresses: Applying a cool, damp cloth over your closed eyes can provide soothing relief from itching and irritation.
When to Seek Medical Help
It’s crucial to remember that while Levocetirizine helps manage allergy symptoms, persistent or worsening eye problems always warrant a visit to an ophthalmologist. You should seek medical attention if:
- Your symptoms do not improve or worsen despite using the prescribed medication.
- You experience severe eye pain, blurred vision, or extreme sensitivity to light.
- Your eyes discharge pus or become very red and sticky, as these could be signs of an eye infection, which requires different treatment.
- You develop any new or unusual symptoms after starting Levocetirizine.
- You have concerns about the medication or its side effects.
At Pristine Eye Hospitals, our team of experienced ophthalmologists is dedicated to providing you with the best care. We encourage you to openly discuss all your symptoms and concerns so we can tailor the most effective treatment plan for you.
Frequently asked questions
What is Levocetirizine used for?
Levocetirizine is an anti-allergy medicine used to treat allergic conjunctivitis when it occurs along with rhinitis. This means it helps relieve allergy symptoms affecting both your eyes (like itching, redness, watering) and your nose (like sneezing, runny nose, congestion) at the same time.
How does Levocetirizine work?
Levocetirizine is an antihistamine. It works by blocking the action of histamine, a natural substance released by your body during an allergic reaction. By blocking histamine, it helps to reduce the allergic symptoms in your eyes and nose. It is a non-sedating antihistamine, meaning it is less likely to cause drowsiness.
What are the common Indian brands of Levocetirizine?
In India, some common brands for Levocetirizine include Xyzal, Levocet, and 1-Al.
How should I use Levocetirizine?
Levocetirizine is taken orally, usually as a tablet or syrup. The typical adult dose is 5 mg once a day. Always follow the specific instructions given by your ophthalmologist or doctor regarding the dose and duration of treatment. Do not exceed the prescribed dose.
Do I need a prescription for Levocetirizine?
Yes, Levocetirizine is a prescription medicine. While some formulations might be available over-the-counter, it is always best to use it only as directed by a qualified ophthalmologist or doctor. Do not self-medicate or reuse an old prescription.
What key precautions should I take while using Levocetirizine?
Always use Levocetirizine as directed by your doctor. Inform your doctor about any other medicines you are taking, and if you are pregnant, breastfeeding, or have kidney issues. Although it's non-sedating, observe how you react before driving or operating machinery. Avoid alcohol while on this medication. This page is for general education and not a substitute for professional medical advice.
References
- Levocetirizine: MedlinePlus Drug Information
- Levocetirizine | C21H25ClN2O3 | CID 1549000 – PubChem – NIH
- Oral antihistamines for seasonal allergic conjunctivitis – PMC – NIH
- Eye Allergies – American Academy of Ophthalmology
- Learn about eye health – National Eye Institute (NIH)
Medically reviewed by Dr. C Jagadesh Reddy, Chief Surgeon: Cornea, Cataract and Refractive Surgery — last reviewed 2026-07-28.
This page is for general education only and is not a substitute for professional medical advice, diagnosis or treatment. Never self-medicate or reuse an old prescription. Always consult a qualified ophthalmologist before starting, changing or stopping any eye medicine.