CPM Injection (Chlorpheniramine Maleate): Complete Medicine Guide
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026
When to Call Your Doctor IMMEDIATELY
- Difficulty breathing or swelling of the face, lips, or throat
- Irregular or very fast heartbeat
- Severe drowsiness or confusion
- Inability to pass urine
- Seizures or convulsions
- Yellowing of the skin or eyes
- Severe rash or blistering of the skin
If experiencing severe symptoms, call emergency services immediately.
What is cpm injection used for?
This medicine contains chlorpheniramine maleate, a first-generation antihistamine used to relieve allergy symptoms such as sneezing, runny nose, and itchy eyes. It works by blocking histamine and may cause drowsiness.
- Generic Name: Chlorpheniramine Maleate
- Manufacturer: Kim Lab
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 cpm injection के बारे में (Hindi Summary)
उपयोग: यह दवा क्लोरफेनिरामाइन मेलिएट नामक एंटीहिस्टामिन है, जिसका उपयोग एलर्जी से होने वाली छींक, नाक बहना, आंखों में खुजली और पानी आना, तथा त्वचा पर खुजली और पित्ती जैसी समस्याओं में राहत के लिए किया जाता है। यह शरीर में हिस्टामिन नामक पदार्थ को रोककर एलर्जी के लक्षणों को कम करती है। यह दवा सामान्य सर्दी-जुकाम में भी नाक बहने और छींक को कम करने में मदद कर सकती है। इस दवा से नींद आ सकती है, इसलिए गाड़ी चलाने या मशीन चलाने से बचें। शराब के साथ इसका सेवन न करें। गर्भवती महिलाएं, स्तनपान कराने वाली महिलाएं और बुजुर्ग डॉक्टर की सलाह के बाद ही इसका उपयोग करें।
साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में नींद आना, चक्कर आना, मुंह सूखना, धुंधला दिखना और कब्ज शामिल हैं। कुछ लोगों को जी मिचलाना, पेट में असहजता या पेशाब करने में कठिनाई हो सकती है। ये लक्षण आमतौर पर हल्के होते हैं और दवा जारी रखने पर कम हो जाते हैं। यदि आपको सांस लेने में तकलीफ, चेहरे या गले में सूजन, दिल की धड़कन अनियमित होना, या बहुत अधिक भ्रम महसूस हो, तो तुरंत डॉक्टर से संपर्क करें।
सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। अपनी मर्जी से मात्रा न बढ़ाएं। शराब और नींद लाने वाली अन्य दवाओं के साथ इसका सेवन न करें। यदि आपको ग्लूकोमा, प्रोस्टेट की समस्या, पेशाब करने में कठिनाई, अस्थमा या लीवर की बीमारी है, तो डॉक्टर को बताएं। बुजुर्गों को यह दवा सावधानी से लेनी चाहिए क्योंकि इससे भ्रम और गिरने का खतरा बढ़ सकता है। गर्भावस्था या स्तनपान के दौरान डॉक्टर से सलाह लें। दवा को बच्चों की पहुंच से दूर रखें।
💊 cpm injection 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":"Urticaria","description":"Reduces itching and hives associated with allergic skin reactions.","evidence":"Well-established"},{"condition":"Common cold","description":"May help dry up a runny nose and reduce sneezing, though it does not treat the viral infection itself.","evidence":"Limited"},{"condition":"Itching due to insect bites","description":"Provides relief from itching and mild allergic reactions after insect bites.","evidence":"Limited"},{"condition":"Anaphylaxis adjunct","description":"Sometimes used as an add-on after epinephrine in emergency allergic reactions, but it is not a substitute for epinephrine.","evidence":"Limited"}]
Off-label uses: [{"condition":"Insomnia due to allergy","description":"Occasionally used at night for its sedative effect when allergy symptoms disturb sleep.","evidence":"Limited"},{"condition":"Motion sickness","description":"Sometimes used for mild motion sickness because of its sedative and anticholinergic effects.","evidence":"Limited"}]
Primary treatment for: Allergic rhinitis
Also treats: Urticaria, Common cold, Insect bite allergy, Itching due to other causes
📋 Drug Information
| Generic Name(s) | Chlorpheniramine Maleate |
| Brand Name | Allermin |
| Manufacturer | Kim Lab |
| 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 dry place, away from direct sunlight and moisture. |
| Shelf Life | Not established from the available information. Check the expiry date 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 chemical released by mast cells during allergic reactions, and it causes sneezing, itching, runny nose, and blood vessel dilation. By occupying H1 receptors, chlorpheniramine maleate prevents histamine from triggering these symptoms. It also has anticholinergic properties, which help dry up secretions and reduce runny nose, but these properties can also cause dry mouth, constipation, and blurred vision.
Mechanism Steps
💡 How to Take cpm injection
Strength: Chlorpheniramine maleate is available in various oral forms and strengths, including 4 mg tablets and 2 mg/5 mL syrup. The specific strength of this product is not established from the available information.
Dosage Information
| Adult Dosage | The usual adult oral dose of chlorpheniramine maleate is 4 mg every 4 to 6 hours as needed, not exceeding 24 mg in 24 hours. For extended-release forms, the dose is usually 8 mg to 12 mg every 8 to 12 hours, not exceeding 24 mg per day. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function, and response to treatment. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician. |
| Elderly Dosage | Older adults are more sensitive to the sedative and anticholinergic effects of this medicine. Start with a lower dose and use with caution. Dose must be individualized by a qualified clinician. |
| Renal Impairment | Dose adjustment may be needed in severe kidney disease. Consult a doctor for individualized dosing. |
| Hepatic Impairment | Use with caution in liver disease. Dose reduction may be necessary. Consult a doctor for individualized dosing. |
| Maximum Daily Dose | The maximum recommended oral dose for adults is 24 mg per day. Do not exceed this unless directed by a doctor. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of cpm injection
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| MAOIs | Major | |
| Alcohol | Major | |
| Opioids | Major | |
| Tricyclic antidepressants | Moderate | |
| Fluoxetine | Moderate | |
| Paroxetine | Moderate | |
| Antacids | Minor | |
| Caffeine | Minor |
🚨 Major Interactions
- Monoamine oxidase inhibitors (MAOIs)
- Alcohol
- Opioid pain relievers, sleeping pills, or anxiety medicines
⚡ Moderate Interactions
- Tricyclic antidepressants
- Anticholinergic medicines for bladder or Parkinson's disease
- CYP2D6 inhibitors such as fluoxetine or paroxetine
🍷 Alcohol Interaction
Alcohol should be avoided while taking this medicine because it increases drowsiness, dizziness, and the risk of accidents. It can also worsen dry mouth and constipation.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Known allergy to chlorpheniramine maleate or similar antihistamines","Narrow-angle glaucoma","Enlarged prostate with difficulty passing urine","Bladder neck obstruction","Severe liver disease","Use with MAO inhibitors"]
⚠️ Warnings & Precautions
["May cause drowsiness; avoid driving or operating machinery until you know how it affects you.","Avoid alcohol and other sedating medicines.","Use with caution in older adults due to increased risk of confusion and falls.","Use with caution in people with asthma, increased eye pressure, or thyroid problems.","Do not use for a prolonged period without medical advice.","Keep out of reach of children."]
🤱 Lactation Safety
This medicine passes into breast milk and may cause drowsiness or irritability in a breastfed baby. Consult a doctor before use during breastfeeding.
💊 Overdose Management
Overdose can cause severe drowsiness, confusion, hallucinations, irregular heartbeat, seizures, and difficulty breathing. If overdose is suspected, seek emergency medical care immediately. Treatment is supportive and may include activated charcoal, monitoring of vital signs, and management of seizures or heart rhythm problems.
⏰ 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
Take this medicine exactly as directed by your doctor or as written on the label. Do not increase the dose or take it more often than recommended. Avoid alcohol and other medicines that cause drowsiness, such as sleeping pills, anxiety medicines, or opioid pain relievers, because they can add to the sedative effect. Tell your doctor if you have glaucoma, an enlarged prostate, trouble passing urine, asthma, liver disease, or thyroid problems. Older adults are more sensitive to the drowsiness and confusion this medicine can cause, so they should use it with extra caution. If you are pregnant, planning pregnancy, or breastfeeding, speak to a doctor before using this medicine. Keep this medicine out of the reach of children and store it as advised on the pack.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Older adults are more prone to drowsiness, confusion, dry mouth, constipation, and urinary retention. Use the lowest effective dose and monitor closely.
🤰 Pregnancy Planning (TTC)
If you are planning pregnancy, consult your doctor before using this medicine. Alternative treatments may be preferred.
🏥 Post-Surgery Considerations
This medicine may cause drowsiness and dry mouth after surgery. Inform your surgeon and anesthesiologist about its use before any operation.
🦷 Dental Procedures
Inform your dentist if you are taking this medicine, as it can cause dry mouth and interact with sedatives used during dental procedures.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
Avoid strenuous exercise or activities requiring alertness until you know how this medicine affects you, as it can cause drowsiness and dizziness.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine can cause drowsiness and reduce alertness, which may affect your ability to drive, operate machinery, or perform tasks requiring concentration. Plan your work and activities accordingly until you know how it affects you.
🛑 When to Stop This Medicine
Do not stop this medicine without consulting your doctor if you have been taking it regularly. If you experience severe side effects, seek medical advice immediately.
📅 Long-Term Use Effects
Long-term use of this medicine may lead to tolerance, increased drowsiness, and anticholinergic effects such as constipation and urinary retention. It is not recommended for prolonged use without medical supervision. Regular review by a doctor is advised if long-term therapy is needed.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
Reducing exposure to allergens can decrease the need for medicine.
Evidence: Well-establishedHelps clear allergens and mucus from the nose.
Evidence: Well-establishedMay cause less drowsiness and are preferred for daytime use.
Evidence: Well-established💉 Vaccination Considerations
💉 If You're Getting Vaccinated
Not established from the available information. Consult your doctor regarding vaccination timing while taking this medicine.
📦 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
Carry this medicine in its original packaging with a copy of your prescription. Store it at room temperature and protect it from moisture. If traveling across time zones, adjust dosing times gradually as advised by your doctor. Check local customs regulations for carrying medicines.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: This medicine usually starts relieving allergy symptoms within 30 to 60 minutes after oral intake.
A: Yes, many people take it at night because it can cause drowsiness and help with sleep.
A: Pediatric dosing is not established from available information. Consult a pediatrician.
A: Do not combine with other antihistamines without medical advice, as side effects may add up.
🤔 Common Patient Concerns
🔄 Substitutes for cpm injection
View AllAlternative brands with exact same active ingredient:
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bioflaxacin tabletBiochem Pharmaceutical Industries ₹10.58 100.8% COSTLIER
-
ridyl tabletApex Laboratories Pvt Ltd ₹12.67 140.4% COSTLIER
-
daslin p liquidRPG Life Sciences Ltd ₹16.41 211.4% COSTLIER
-
hista 12 tabletKaptab Pharmaceuticals ₹17.81 238% COSTLIER
-
histanil syrupTroikaa Pharmaceuticals Ltd ₹31.90 505.3% COSTLIER
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: This medicine can cure allergies permanently.
Fact: It only relieves symptoms; it does not cure the underlying allergy. - Myth: It is safe to drive after taking this medicine.
Fact: It can cause drowsiness and slow reactions, so avoid driving until you know how it affects you. - Myth: More medicine means faster relief.
Fact: Taking more than the recommended dose increases the risk of side effects without providing better relief.
🔄 Alternative Options
Generic Alternatives
- Chlorpheniramine maleate 4 mg tablet
- Chlorpheniramine maleate 2 mg/5 mL syrup