Alidex 2mg Tablet: Complete Guide to Uses, Side Effects, Dosage, and Safety
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026
When to Call Your Doctor IMMEDIATELY
- Swelling of the face, lips, tongue, or throat
- Difficulty breathing or wheezing
- Severe rash or hives all over the body
- Inability to pass urine
- Unusual bruising or bleeding
- Severe drowsiness, confusion, or fainting
- Fast or irregular heartbeat
- Seizures or fits
If experiencing severe symptoms, call emergency services immediately.
What is alidex 2mg tablet used for?
This medicine is an oral antihistamine tablet containing Chlorpheniramine Maleate 2mg. It is used to relieve sneezing, runny nose, itchy eyes, and skin itching caused by allergies. It works by blocking histamine H1 receptors. It can cause drowsiness, so avoid driving or alcohol while taking it.
- Generic Name: Chlorpheniramine Maleate
- Manufacturer: Bsp Pharmaceuticals
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 alidex 2mg tablet के बारे में (Hindi Summary)
उपयोग: यह दवा क्लोरफेनिरामाइन मेलिएट 2mg की एक ओरल टैबलेट है, जिसका उपयोग एलर्जी से होने वाली छींक, नाक बहना, नाक में खुजली, आंखों में पानी आना और त्वचा में खुजली जैसे लक्षणों को कम करने के लिए किया जाता है। यह एलर्जिक राइनाइटिस, हे फीवर, पित्ती (urticaria) और कीड़े के काटने से होने वाली खुजली में राहत देती है। यह दवा शरीर में हिस्टामिन नामक पदार्थ को रोककर काम करती है, जिससे एलर्जी के लक्षण कम होते हैं। यह दवा नींद ला सकती है, इसलिए इसे लेने के बाद गाड़ी चलाना या मशीन चलाना न करें। शराब के साथ इसका सेवन न करें। इस दवा को डॉक्टर की सलाह के बिना लंबे समय तक न लें।
साइड इफेक्ट्स: इस दवा के आम दुष्प्रभावों में नींद आना, चक्कर आना, मुंह सूखना, नाक सूखना और गले में जलन शामिल हैं। कुछ लोगों को धुंधला दिखना, कब्ज या पेशाब करने में कठिनाई हो सकती है। ये दुष्प्रभाव आमतौर पर हल्के होते हैं और कुछ दिनों में कम हो जाते हैं। बच्चों और बुजुर्गों में यह दवा नींद के बजाय बेचैनी या भ्रम पैदा कर सकती है। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन अगर चेहरे, होंठ या गले में सूजन, सांस लेने में कठिनाई, या त्वचा पर गंभीर दाने दिखें तो तुरंत डॉक्टर से मिलें।
सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। अपनी मर्जी से मात्रा न बढ़ाएं। इस दवा से नींद आ सकती है, इसलिए जब तक आपको इसका असर समझ न आ जाए, गाड़ी चलाना या मशीन चलाना न करें। शराब के साथ इसका सेवन न करें। अगर आपको ग्लूकोमा, प्रोस्टेट बढ़ा होना, पेशाब करने में कठिनाई, दमा, लीवर या किडनी की बीमारी है, तो डॉक्टर को बताएं। गर्भवती महिलाएं, स्तनपान कराने वाली महिलाएं और 2 साल से छोटे बच्चे इस दवा को डॉक्टर की सलाह के बिना न लें। दवा को बच्चों की पहुंच से दूर, ठंडी और सूखी जगह पर रखें।
💊 alidex 2mg tablet Uses & Benefits
[{"condition":"Allergic rhinitis","description":"Relieves sneezing, runny nose, itchy nose, and watery eyes caused by seasonal or year-round allergies.","evidence":"Well-established"},{"condition":"Hay fever","description":"Reduces nasal and eye symptoms triggered by pollen and other airborne allergens.","evidence":"Well-established"},{"condition":"Urticaria","description":"Helps control itching and hives associated with allergic skin reactions.","evidence":"Well-established"},{"condition":"Itching due to insect bites","description":"Provides relief from mild itching and local allergic reactions after insect bites.","evidence":"Commonly used"},{"condition":"Common cold","description":"Sometimes used to dry up nasal secretions and reduce sneezing in colds, but it does not treat the infection itself.","evidence":"Limited"}]
Off-label uses: [{"condition":"Insomnia","description":"Occasionally used for its sedative effect to help with short-term sleep problems, but this is not a recommended first-line use.","evidence":"Limited"},{"condition":"Motion sickness","description":"Sometimes used off-label for mild motion sickness because of its sedative and antiemetic-like effects.","evidence":"Limited"},{"condition":"Anxiety-related itching","description":"Rarely used when itching is thought to have a strong nervous component, but this is not a standard approved use.","evidence":"Limited"}]
Primary treatment for: Allergic rhinitis
Also treats: Hay fever, Urticaria, Itching due to insect bites, Common cold
📋 Drug Information
| Generic Name(s) | Chlorpheniramine Maleate |
| Brand Name | Allermin |
| Manufacturer | Bsp Pharmaceuticals |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | RESPIRATORY |
| Action Class | H1 Antihistaminics (First Generation) |
| Route of Administration | Oral |
| Storage | Store at room temperature between 15°C and 30°C in a cool, dry place. Protect from direct sunlight and moisture. Keep the tablets in the original container or blister pack. |
| Shelf Life | Not established from the available information. Refer to the expiry date printed on the pack. |
| WHO Guideline | Not established from the available information. |
| ICMR Guideline | Not established from the available information. |
👨⚕️ Doctor's Practical Tips
Evidence-based practical advice from experienced clinicians
🔍 Is This Medicine Right for Your Symptom?
Educational reference. Always consult a doctor for diagnosis.
🔬 How This Medicine Works (Pharmacology)
Pharmacokinetics
How It Works
This medicine works by blocking histamine H1 receptors in the body. Histamine is a natural chemical released during allergic reactions, and it causes sneezing, itching, runny nose, and watery eyes. By blocking these receptors, this medicine reduces these allergy symptoms. It also has some anticholinergic and sedative effects, which explain dry mouth, drowsiness, and reduced nasal secretions.
Mechanism Steps
💡 How to Take alidex 2mg tablet
Strength: Chlorpheniramine Maleate 2mg immediate-release tablet for oral use.
Dosage Information
| Adult Dosage | The usual adult dose of this medicine is 2mg to 4mg taken by mouth every 4 to 6 hours as needed for allergy symptoms. The maximum adult dose is generally 24mg in 24 hours, but this must be confirmed by a doctor. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function, and response to treatment. Do not take more than the prescribed dose. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician. This medicine should not be given to children below 2 years of age unless specifically prescribed by a pediatrician. |
| Elderly Dosage | Older adults are more sensitive to the side effects of this medicine, especially drowsiness, confusion, dry mouth, and urinary retention. A lower dose or a different antihistamine may be safer. Dose must be individualized by a qualified clinician. |
| Renal Impairment | Dose adjustment may be needed in patients with kidney disease. Consult a doctor before taking this medicine if you have kidney problems. |
| Hepatic Impairment | Dose adjustment may be needed in patients with liver disease. Consult a doctor before taking this medicine if you have liver problems. |
| Maximum Daily Dose | The maximum adult dose is generally 24mg in 24 hours, but this must be confirmed by a doctor. Do not exceed the dose prescribed by your clinician. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of alidex 2mg tablet
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| Alcohol | Major | |
| Sedatives | Major | |
| MAO inhibitors | Major | |
| Antidepressants | Moderate | |
| Opioid pain medicines | Moderate | |
| Anticholinergic medicines | Moderate | |
| Antacids | Minor | |
| Caffeine | Minor |
🚨 Major Interactions
- Alcohol
- Sedatives and sleeping pills
- Monoamine oxidase inhibitors
⚡ Moderate Interactions
- Antidepressants
- Opioid pain medicines
- Anticholinergic medicines
🍷 Alcohol Interaction
Do not drink alcohol while taking this medicine. Alcohol increases the risk of severe drowsiness, dizziness, and difficulty concentrating, which can be dangerous while driving or operating machinery.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Allergy to Chlorpheniramine Maleate or similar antihistamines","Newborns and premature infants","Narrow-angle glaucoma","Urinary retention or prostate enlargement with difficulty passing urine","Severe liver disease","Untreated high blood pressure or severe heart disease","Use with monoamine oxidase inhibitors"]
⚠️ Warnings & Precautions
["This medicine can cause drowsiness. Avoid driving or operating machinery until you know how it affects you.","Do not drink alcohol while taking this medicine.","Use with caution in older adults because they are more sensitive to drowsiness, confusion, and urinary retention.","Use with caution in children because it may cause unusual excitement or restlessness.","Inform your doctor if you have glaucoma, prostate enlargement, asthma, liver disease, kidney disease, or heart disease.","Do not use this medicine for a longer time than advised without consulting a doctor.","Keep this medicine out of reach of children.","Do not use this medicine after the expiry date."]
🤱 Lactation Safety
This medicine may pass into breast milk and could cause drowsiness or irritability in a breastfed baby. Consult your doctor before using this medicine while breastfeeding.
💊 Overdose Management
Overdose of this medicine can cause severe drowsiness, confusion, dizziness, dry mouth, flushing, fast heartbeat, and in serious cases, seizures, coma, or breathing difficulty. If you suspect an overdose, contact a doctor or go to the nearest emergency department immediately. Do not try to treat yourself. Carry the medicine pack with you so that the medical team knows exactly what was taken.
⏰ 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 take a double dose to make up for a missed one.
Additional Safety Advice
Take this medicine exactly as advised by your doctor. Do not increase the dose or take it more often than prescribed. Avoid driving, riding a two-wheeler, or operating machinery until you know how this medicine affects you, because it can cause drowsiness. Do not drink alcohol while taking this medicine, as alcohol can increase drowsiness and dizziness. Tell your doctor if you have glaucoma, prostate enlargement, difficulty passing urine, asthma, liver disease, kidney disease, or high blood pressure. Inform your doctor about all other medicines, supplements, and herbal products you are taking, especially sedatives, sleeping pills, antidepressants, and pain medicines. Do not give this medicine to children below 2 years of age unless specifically prescribed by a pediatrician. If you are pregnant, planning pregnancy, or breastfeeding, consult your doctor before using this medicine. Keep this medicine out of reach of children. Store it in a cool, dry place away from direct sunlight. Do not use it after the expiry date printed on the pack.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Older adults are more sensitive to the side effects of this medicine, especially drowsiness, confusion, dry mouth, constipation, and urinary retention. They may need a lower dose or a different antihistamine. Use with caution and only under medical supervision.
🤰 Pregnancy Planning (TTC)
If you are planning pregnancy or are pregnant, consult your doctor before taking this medicine. There is limited information about its safety in pregnancy, and the benefits and risks must be weighed by a qualified clinician.
🏥 Post-Surgery Considerations
This medicine can cause drowsiness and may interact with sedatives or pain medicines used after surgery. Inform your surgeon and anesthesiologist if you are taking this medicine before any surgery.
🦷 Dental Procedures
This medicine can cause dry mouth, which may increase the risk of dental problems. Inform your dentist if you are taking this medicine, especially before any dental procedure that requires sedation or anesthesia.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
This medicine can cause drowsiness and dizziness, which may affect your coordination. Avoid heavy exercise, driving, or operating machinery until you know how this medicine affects you. If you feel dizzy or sleepy during exercise, stop and rest.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine can cause drowsiness, which may affect your ability to drive, operate machinery, or concentrate at work. Avoid tasks that require full alertness until you know how this medicine affects you. If your work involves driving or heavy machinery, ask your doctor about a less sedating alternative.
🛑 When to Stop This Medicine
Stop this medicine and consult your doctor if your allergy symptoms improve and you no longer need it, or if you experience severe side effects such as difficulty passing urine, severe drowsiness, confusion, or allergic reactions. Do not stop a prescribed medicine without talking to your doctor first.
📅 Long-Term Use Effects
Long-term use of this medicine may lead to tolerance, meaning the same dose may become less effective over time. It can also cause persistent drowsiness, dry mouth, constipation, and urinary problems, especially in older adults. Regular monitoring by a doctor is advised if long-term use is needed. Do not use this medicine for a longer time than prescribed without medical review.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
Identifying and avoiding triggers such as dust, pollen, and pet dander can reduce the need for medicines.
Evidence: Well-establishedRinsing the nose with saline can help clear allergens and reduce nasal symptoms.
Evidence: Well-establishedSecond-generation antihistamines such as cetirizine, loratadine, or fexofenadine may be used if drowsiness is a problem.
Evidence: Well-establishedThese are effective for allergic rhinitis and may be recommended by a doctor for persistent symptoms.
Evidence: Well-established💉 Vaccination Considerations
💉 If You're Getting Vaccinated
Not established from the available information. This medicine is not known to interact with vaccines, but consult your doctor if you have any concerns.
📦 Storage Guide
✅ DO
Store at room temperature between 15°C and 30°C
❌ DON'T
Do not refrigerate unless specified
✅ DO
Keep in the original container or blister pack
❌ DON'T
Do not transfer to unmarked containers
✅ DO
Keep away from direct sunlight and moisture
❌ DON'T
Do not store in the bathroom cabinet
✅ DO
Keep out of reach of children
❌ DON'T
Do not use after the expiry date
✈️ Traveling with This Medicine
Carry this medicine in its original packaging with the prescription label clearly visible. Keep a copy of your prescription with you, especially when travelling internationally. Store it in a cool, dry place away from direct sunlight and moisture. If you are crossing time zones, continue taking the medicine as advised by your doctor, but do not double the dose to adjust for time changes. If you feel drowsy, avoid driving or operating machinery during travel. Check the customs rules of your destination country for carrying prescription medicines.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: This medicine usually starts to reduce allergy symptoms within 30 to 60 minutes after taking it by mouth.
A: The effect of a single dose usually lasts about 4 to 6 hours, but this may vary from person to person.
A: Yes, many people take it at night because it can cause drowsiness. Follow your doctor's advice about timing.
A: Yes, drowsiness is a common side effect of this medicine. Avoid driving or operating machinery until you know how it affects you.
A: No, alcohol increases drowsiness and dizziness caused by this medicine and should be avoided.
A: This medicine should not be given to children below 2 years of age unless specifically prescribed by a pediatrician. For older children, consult a doctor for the correct dose.
A: Use during pregnancy only if clearly needed and after consulting your doctor. There is limited information about its safety in pregnancy.
A: If you miss a dose, take it as soon as you remember. If it is almost time for the next dose, skip the missed dose and continue with your regular schedule. Do not double the dose.
A: Do not take other antihistamines or sedating medicines without consulting your doctor, as the effects may add up.
A: Take this medicine only for as long as your doctor advises. If your symptoms persist, consult your doctor for a review.
🤔 Common Patient Concerns
🔄 Substitutes for alidex 2mg tablet
View AllAlternative brands with exact same active ingredient:
-
rolaramine 2mg tabletConcord Drugs Ltd ₹11.25 14.3% CHEAPER
-
Trigenic Eye DropTrigenesis Life Sciences Pvt Ltd ₹25.31 92.8% COSTLIER
-
piriton u 2mg syrupGlaxo SmithKline Pharmaceuticals Ltd ₹36.49 177.9% COSTLIER
-
contus ml tabletStedman Pharmaceuticals Pvt Ltd ₹96.25 633.1% COSTLIER
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: This medicine can cure allergies permanently.
Fact: This medicine only controls allergy symptoms while it is in the body. It does not cure the underlying allergy. - Myth: This medicine is safe to take with alcohol.
Fact: Alcohol increases drowsiness and dizziness caused by this medicine and should be avoided. - Myth: This medicine can be given to infants for cold and cough.
Fact: This medicine should not be given to newborns, premature infants, or children below 2 years unless specifically prescribed by a pediatrician. - Myth: More doses mean faster relief.
Fact: Taking more than the prescribed dose does not give faster relief and can increase the risk of side effects.
🔄 Alternative Options
Generic Alternatives
- Chlorpheniramine Maleate 2mg tablet
Brand Alternatives
- Alidex 2mg tablet