alzero tablet - Levocetirizine (5mg) medicine

Alergin L Tablet: Complete Medicine Guide

No reviews yet
🏭 Indchemie Health Specialities Pvt Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 20, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for allergic rhinitis and chronic urticaria.
Reviewed by
SaathiMed Expert Panel | Sep 20, 2026

When to Call Your Doctor IMMEDIATELY

  • Difficulty breathing or wheezing
  • Swelling of the face, lips, tongue, or throat
  • Severe dizziness or fainting
  • Rapid or irregular heartbeat
  • Seizures or convulsions
  • Yellowing of the skin or eyes
  • Severe abdominal pain or persistent vomiting

If experiencing severe symptoms, call emergency services immediately.

What is alzero tablet used for?

This medicine contains Levocetirizine 5 mg, an antihistamine used to treat allergic rhinitis and chronic urticaria. It works by blocking histamine, relieving sneezing, runny nose, and itching. The usual adult dose is 5 mg once daily in the evening. It may cause drowsiness, so avoid driving until you know how it affects you.

  • Generic Name: Levocetirizine
  • Manufacturer: Indchemie Health Specialities Pvt Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 alzero tablet के बारे में (Hindi Summary)

उपयोग: यह दवा लेवोसेटिरिज़िन 5 मिलीग्राम युक्त एक एंटीहिस्टामिन है, जिसका उपयोग एलर्जिक राइनाइटिस (नाक की एलर्जी) और क्रोनिक अर्टिकेरिया (पुरानी पित्ती) के इलाज के लिए किया जाता है। यह छींक, बहती नाक, आंखों में खुजली और पानी आना, और त्वचा पर खुजली जैसे लक्षणों को कम करने में मदद करती है। यह दवा हिस्टामिन नामक पदार्थ को रोककर काम करती है, जो एलर्जी के लक्षण पैदा करता है। वयस्कों और 6 वर्ष से अधिक उम्र के बच्चों के लिए इसका उपयोग किया जा सकता है, लेकिन खुराक डॉक्टर द्वारा निर्धारित की जानी चाहिए।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में नींद आना, थकान, मुंह सूखना, सिरदर्द और पेट में हल्की परेशानी शामिल हैं। ये आमतौर पर हल्के होते हैं और कुछ समय में ठीक हो जाते हैं। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन यदि आपको सांस लेने में कठिनाई, चेहरे या गले में सूजन, या त्वचा पर गंभीर दाने हों, तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के निर्देशानुसार ही लें। खुराक से अधिक न लें। इस दवा को लेने के बाद नींद आ सकती है, इसलिए वाहन चलाने या मशीनरी चलाने से बचें जब तक कि आपको पता न चल जाए कि यह आपको कैसे प्रभावित करती है। शराब का सेवन न करें क्योंकि इससे नींद और बढ़ सकती है। यदि आप गर्भवती हैं, स्तनपान करा रही हैं, या गर्भधारण की योजना बना रही हैं, तो अपने डॉक्टर को बताएं। अपने डॉक्टर को अन्य सभी दवाओं के बारे में बताएं जो आप ले रहे हैं। इस दवा को बच्चों की पहुंच से दूर रखें।

💡 Did You Know? India is the largest provider of generic medicines globally, supplying over 50% of global vaccine demand.

💊 alzero tablet Uses & Benefits

[{"condition":"Allergic rhinitis","description":"Relieves sneezing, runny nose, itchy and watery eyes, and nasal itching associated with seasonal or perennial allergies.","evidence":"Well-established"},{"condition":"Chronic idiopathic urticaria","description":"Reduces the number and size of hives and relieves itching in patients with persistent urticaria of unknown cause.","evidence":"Well-established"},{"condition":"Allergic conjunctivitis","description":"Helps reduce itching, redness, and tearing of the eyes due to allergic reactions.","evidence":"Well-established"},{"condition":"Pruritus associated with skin conditions","description":"May be used to relieve itching in various allergic skin disorders.","evidence":"Moderate"}]

Off-label uses: [{"condition":"Adjunct in acute migraine","description":"Sometimes used off-label to help with nausea or as an adjunct, but evidence is limited.","evidence":"Limited"},{"condition":"Anxiety-related insomnia","description":"Due to its sedative properties, it is occasionally used off-label for short-term sleep aid, but this is not recommended.","evidence":"Limited"}]

Primary treatment for: Allergic rhinitis

Also treats: Chronic idiopathic urticaria, Allergic conjunctivitis, Pruritus

📋 Drug Information

Generic Name(s)Levocetirizine
Brand NameAlergin L Tablet
ManufacturerIndchemie Health Specialities Pvt Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassRESPIRATORY
Action ClassH1 Antihistaminics (second Generation)
Route of AdministrationOral
StorageStore at room temperature between 15°C and 30°C (59°F to 86°F). Protect from moisture and direct sunlight. Keep out of reach of children.
Shelf Life24 months from the date of manufacture.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Take this medicine in the evening to minimise daytime drowsiness.
2
Avoid driving or operating heavy machinery until you know how this medicine affects you.
3
Do not consume alcohol while taking this medicine as it can increase sedation.
4
Inform your doctor if you have kidney problems, as the dose may need adjustment.
5
Do not exceed the prescribed dose; taking more will not relieve symptoms faster.
6
If your allergy symptoms persist beyond a few days, consult your doctor for further evaluation.
7
Keep a record of any side effects and discuss them with your doctor at your next visit.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Sneezing and runny nose
This medicine is commonly prescribed for allergic rhinitis.
Likely Use
Itchy, watery eyes
This medicine helps relieve allergic conjunctivitis symptoms.
Likely Use
Hives and skin itching
This medicine is used for chronic urticaria.
Likely Use
Fever
This medicine is not a fever reducer.
Not Primary
Cough with phlegm
This medicine is not indicated for infective cough.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionLevocetirizine is rapidly and extensively absorbed after oral administration. The absolute bioavailability is high, approximately 100%. Food does not significantly affect the extent of absorption, but it may delay the time to peak concentration.
DistributionLevocetirizine distributes into body tissues, but it has a relatively low volume of distribution (approximately 0.4 L/kg). It does not extensively penetrate the central nervous system, which contributes to its lower sedative profile compared to first-generation antihistamines.
Protein BindingApproximately 90% of levocetirizine is bound to plasma proteins, primarily albumin.
MetabolismLevocetirizine undergoes minimal hepatic metabolism. About 14% of the dose is metabolised, mainly by CYP3A4, but the majority is excreted unchanged.
Half-LifeThe elimination half-life of levocetirizine is approximately 6 to 8 hours in healthy adults. In patients with renal impairment, the half-life is prolonged.
ExcretionLevocetirizine is primarily excreted unchanged in the urine. About 85% of the dose is excreted in urine and 13% in faeces. Renal clearance is the major route of elimination.
BioavailabilityThe oral bioavailability of levocetirizine is approximately 100%.
Onset of ActionThe onset of antihistamine effect is typically within 1 hour after oral administration.
Peak Plasma TimePeak plasma concentration is reached approximately 0.9 hours after oral administration.
Duration of ActionThe antihistamine effect lasts for about 24 hours, allowing once-daily dosing.

How It Works

Levocetirizine is the active enantiomer of cetirizine and acts as a selective antagonist at the H1 histamine receptor. By binding to these receptors, it prevents histamine, an endogenous substance released during allergic reactions, from activating the receptor. This blockade reduces the typical allergic responses such as vasodilation, increased vascular permeability, and sensory nerve stimulation, thereby alleviating symptoms like sneezing, itching, and runny nose.

Mechanism Steps

1
Binding to H1 receptor: Levocetirizine binds selectively to the H1 histamine receptor on target cells, such as those in the respiratory tract, skin, and blood vessels.
2
Inhibition of histamine signalling: By occupying the receptor, it prevents histamine from binding and triggering intracellular signals that lead to allergic symptoms.
3
Reduction of allergic response: This results in decreased vascular permeability, reduced sensory nerve activation, and less smooth muscle contraction, which translates to relief from sneezing, itching, and runny nose.

💡 How to Take alzero tablet

Strength: Levocetirizine 5 mg immediate-release tablet

1Take this medicine by mouth with a glass of water.
2You can take it with or without food.
3Swallow the tablet whole; do not crush or chew.
4Take it at the same time each day to maintain consistent levels.
5If you miss a dose, follow the missed dose instructions.

Dosage Information

Adult DosageThe usual adult dose of this medicine is 5 mg once daily in the evening. However, the dose may be adjusted by your doctor based on your kidney function and the condition being treated. For allergic rhinitis, it is often taken once daily. For chronic urticaria, the same dose is typically used. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosageFor children aged 6 to 11 years, the usual dose is 2.5 mg once daily in the evening. For children 12 years and older, the adult dose of 5 mg once daily is used. Pediatric dosing is not established from available information for children under 6 years. Consult a pediatrician.
Elderly DosageElderly patients may be more sensitive to the side effects of this medicine, especially drowsiness. The dose may need to be reduced based on renal function. Dose must be individualized by a qualified clinician.
Renal ImpairmentIn patients with mild renal impairment (creatinine clearance 50-80 mL/min), the dose may be 2.5 mg once daily. In moderate renal impairment (creatinine clearance 30-50 mL/min), 2.5 mg once daily is recommended. In severe renal impairment (creatinine clearance 10-30 mL/min), 2.5 mg once every other day is recommended. In end-stage renal disease (creatinine clearance <10 mL/min), the medicine is contraindicated. Dose must be individualized by a qualified clinician.
Hepatic ImpairmentNo dose adjustment is required for patients with hepatic impairment alone. However, if hepatic impairment is accompanied by renal impairment, dose adjustment may be necessary. Dose must be individualized by a qualified clinician.
Maximum Daily Dose5 mg per day for adults and children 12 years and older. For children 6-11 years, the maximum daily dose is 2.5 mg.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

With or without food
Take at the same time each day
Food does not significantly affect absorption, but consistency helps maintain blood levels.
Grapefruit juice
Moderate consumption is acceptable
Grapefruit juice may slightly increase drug levels, but usually not clinically significant.

⏰ What to Do If You Miss a Dose

📌 Less than 12 hours have passed since the missed dose
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than 12 hours have passed since the missed dose
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of alzero tablet

✅ Common Side Effects

Drowsiness (Common (5-10%))
Avoid driving or operating machinery until you know how it affects you. If drowsiness persists, consult your doctor.
Fatigue (Common (5-10%))
Get adequate rest. If fatigue is severe or persistent, talk to your doctor.
Dry mouth (Common (2-5%))
Sip water frequently or chew sugar-free gum. Consult doctor if it becomes bothersome.
Headache (Common (2-5%))
Usually resolves on its own. If persistent or severe, consult your doctor.
Gastrointestinal discomfort (Uncommon (1-2%))
Take with food to reduce stomach upset. If symptoms continue, consult your doctor.

🚨 Serious Side Effects

Severe allergic reaction (anaphylaxis) (Rare (<0.1%))
Seek immediate medical attention if you experience rash, itching, swelling of the face, lips, tongue, or throat, difficulty breathing, or dizziness.
Severe skin reactions (Rare (<0.1%))
Stop the medicine and seek immediate medical help if you notice blistering, peeling, or a severe rash.
Liver problems (Rare (<0.1%))
Report yellowing of skin or eyes, dark urine, or severe abdominal pain to your doctor immediately.

⚠️ Rare Side Effects

Palpitations
Consult your doctor if you experience a racing or irregular heartbeat.
Seizures
Seek emergency medical care if seizures occur.
Urinary retention
Consult your doctor if you have difficulty passing urine.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Alcohol Major
Benzodiazepines Major
Opioids Major
Ritonavir Major
Theophylline Moderate
Other antihistamines Moderate
Antacids Minor
Grapefruit juice Minor

🚨 Major Interactions

  • CNS depressants (e.g., alcohol, benzodiazepines, opioids)
  • Ritonavir

⚡ Moderate Interactions

  • Theophylline
  • Other antihistamines

🍷 Alcohol Interaction

Alcohol can increase the drowsiness and sedative effects of this medicine. It is advisable to avoid alcohol while taking this medicine to prevent excessive sedation and impaired coordination.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Hypersensitivity to levocetirizine or any component of the formulation","Severe renal impairment (creatinine clearance < 10 mL/min)","End-stage renal disease requiring dialysis"]

⚠️ Warnings & Precautions

["May cause drowsiness; avoid driving or operating machinery until you know how it affects you.","Avoid alcohol and other CNS depressants.","Use with caution in patients with renal impairment; dose adjustment may be needed.","Use with caution in patients with epilepsy or seizure disorders.","Not recommended for children under 6 years of age.","Elderly patients may be more sensitive to side effects.","Do not exceed the recommended dose."]

🤱 Lactation Safety

Levocetirizine is excreted in breast milk in small amounts. Caution is advised when used during breastfeeding. Consult your doctor to weigh the benefits and risks.

💊 Overdose Management

Overdose may cause drowsiness, agitation, or restlessness. In case of overdose, seek immediate medical attention. Treatment is symptomatic and supportive. There is no specific antidote. Gastric lavage may be considered if ingestion is recent. Monitor vital signs and provide supportive care.

⏰ Missed Dose

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose to catch up.

Additional Safety Advice

General Safety

Take this medicine exactly as prescribed by your doctor. Do not exceed the recommended dose. Avoid driving or operating heavy machinery until you know how this medicine affects you, as it may cause drowsiness. Avoid consuming alcohol while taking this medicine, as it can increase drowsiness and impair your ability to concentrate. Inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding. Tell your doctor about all other medicines, supplements, or herbal products you are taking, especially sedatives or other antihistamines. If you have kidney or liver problems, your doctor may need to adjust your dose. Keep this medicine out of reach of children. Store it at room temperature, away from moisture and direct sunlight.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may be more sensitive to the sedative effects of this medicine. The dose may need to be reduced based on kidney function. Regular monitoring of renal function is advised. Falls and confusion may occur; caution is needed.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, consult your doctor before taking this medicine. It is generally considered safe during pregnancy, but the dose should be individualised. Inform your doctor if you become pregnant while taking this medicine.

🏥 Post-Surgery Considerations

This medicine may be continued after surgery if needed for allergic symptoms. However, inform your surgeon and anaesthesiologist about all medicines you are taking. It may interact with anaesthetics or sedatives, so close monitoring is required.

🦷 Dental Procedures

Inform your dentist if you are taking this medicine. It may cause dry mouth, which can affect dental health. No major interactions with dental anaesthetics are known, but caution is advised.

💚 Lifestyle Tips for Better Results

🏃
Identify and avoid allergens that trigger your symptoms.
🥗
Keep your living space clean and free of dust mites.
😴
Use air purifiers or filters to reduce airborne allergens.
💧
Maintain a healthy diet rich in fruits and vegetables.
🧘
Stay hydrated to help thin mucus.
🌞
Get adequate sleep to support your immune system.
🚭
Exercise regularly, but avoid outdoor activities during high pollen counts.

🏋️ Exercise Considerations

This medicine may cause drowsiness, which can affect your coordination and reaction time. Avoid strenuous exercise or activities that require alertness until you know how the medicine affects you. If you experience dizziness or fatigue, rest and consult your doctor.

🥗 Diet Recommendations

Include omega-3 fatty acids from fish or flaxseed to reduce inflammation.
Eat plenty of fruits and vegetables rich in antioxidants.
Avoid processed foods and excess sugar, which can worsen inflammation.
Stay well hydrated by drinking plenty of water.
Consider probiotics to support immune health.

💼 Impact on Daily Work & Life

This medicine may cause drowsiness, which can impact your ability to drive, operate machinery, or perform tasks requiring mental alertness. It is best to take it in the evening to minimise daytime sedation. If your work involves operating heavy equipment, discuss with your doctor about timing and alternatives.

🛑 When to Stop This Medicine

Stop taking this medicine if your doctor advises you to, or if you experience severe side effects. Do not stop abruptly if you have been on long-term therapy without consulting your doctor. If your symptoms resolve, you may stop, but consult your doctor for guidance.

📅 Long-Term Use Effects

Long-term use of this medicine is generally safe when taken as prescribed. However, prolonged use may lead to tolerance or reduced effectiveness in some individuals. Regular monitoring of kidney function is advisable in patients with renal impairment. If you experience any unusual symptoms, consult your doctor.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Allergen avoidance

Identifying and avoiding triggers can reduce the need for medication.

Evidence: Well-established
Nasal saline irrigation

Rinsing the nasal passages with saline can help relieve congestion and allergy symptoms.

Evidence: Moderate
Immunotherapy

Allergy shots or sublingual tablets can provide long-term relief for certain allergies.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

This medicine does not interact with vaccines. You can receive vaccinations while taking this medicine. However, if you are scheduled for allergy testing, inform your doctor, as antihistamines may interfere with skin test results.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not refrigerate unless specified

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Keep away from direct sunlight

❌ DON'T

Do not store in bathroom cabinet

✈️ Traveling with This Medicine

When travelling, carry this medicine in its original packaging along with a copy of your prescription. Store it at room temperature and protect it from moisture and direct sunlight. If you are crossing time zones, continue taking your dose at the same time each day as prescribed. If you are unsure about time zone adjustments, consult your doctor or pharmacist. Keep enough supply for the duration of your trip.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 32-year-old woman with seasonal allergic rhinitis
She had been suffering from sneezing, runny nose, and itchy eyes every spring. Her doctor prescribed this medicine once daily in the evening. Within a few days, her symptoms improved significantly. She noted that taking it at night helped her sleep better and reduced daytime drowsiness.
💡 Lesson: Taking this medicine in the evening can help manage symptoms and minimise daytime sedation.
👤 A 45-year-old man with chronic urticaria
He had persistent hives and itching for months. After starting this medicine, the hives reduced in number and the itching subsided. He was advised to avoid alcohol and to report any unusual symptoms. He found relief and was able to continue his daily activities without much disruption.
💡 Lesson: This medicine can effectively control chronic urticaria, but adherence to the prescribed dose and avoiding alcohol are important.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine usually starts working within 1 hour after taking a dose, with peak effects in about 1 hour. However, full relief may take a few days of regular use.

Q: Can I take it if I have kidney disease?

A: If you have kidney disease, your doctor may need to adjust your dose. Do not take this medicine without consulting your doctor if you have severe kidney impairment.

Q: Is it safe to take with other allergy medicines?

A: Taking multiple antihistamines can increase side effects like drowsiness. Consult your doctor before combining with other allergy medicines.

Q: Does it cause drowsiness?

A: Drowsiness is a common side effect, though it is generally mild. Avoid driving or operating machinery until you know how it affects you.

Q: Can I stop taking it suddenly?

A: You can stop taking this medicine when your symptoms resolve, but if you have been on long-term therapy, consult your doctor before stopping.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine long-term?
  • Will it affect my kidney function?
  • Can I drive after taking this medicine?
  • Does it interact with my blood pressure medicine?
  • What if I miss a dose?
  • Can I drink alcohol while taking this?
  • Is it safe during pregnancy?
  • Does it cause weight gain?

🔄 Substitutes for alzero tablet

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: Alergin L Tablet is a steroid.
    Fact: This medicine is an antihistamine, not a steroid. It does not contain steroids.
  • Myth: Alergin L Tablet can be taken for a common cold.
    Fact: This medicine is for allergic conditions, not for viral infections like the common cold. It may not help with cold symptoms.
  • Myth: Alergin L Tablet is safe to take with alcohol.
    Fact: Alcohol can increase drowsiness and should be avoided while taking this medicine.
  • Myth: Alergin L Tablet is addictive.
    Fact: This medicine is not addictive and does not cause dependence.

🔄 Alternative Options

Generic Alternatives

  • Levocetirizine 5 mg tablet

Brand Alternatives

  • Levocet 5 mg tablet
  • Xyzal 5 mg tablet
  • Levorid 5 mg tablet
  • Teczine 5 mg tablet

📊 Comparison with Similar Medicines

[{"medicine":"Levocetirizine","class":"Second-generation antihistamine","sedation":"Low to moderate","duration":"24 hours","onset":"1 hour"},{"medicine":"Cetirizine","class":"Second-generation antihistamine","sedation":"Moderate","duration":"24 hours","onset":"1 hour"},{"medicine":"Loratadine","class":"Second-generation antihistamine","sedation":"Low","duration":"24 hours","onset":"1-3 hours"},{"medicine":"Fexofenadine","class":"Second-generation antihistamine","sedation":"Low","duration":"24 hours","onset":"1-2 hours"}]

😊 Was this information helpful?

Browse Medicines A-Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Back to Medicines Directory