Codep 37 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
- Severe drowsiness, confusion, or difficulty staying awake.
- Slow, shallow, or irregular breathing.
- Chest pain, fainting, or a very fast or irregular heartbeat.
- Seizures or sudden uncontrolled movements.
- Yellowing of the eyes or skin, dark urine, or severe abdominal pain.
- Swelling of the face, lips, tongue, or throat with difficulty breathing.
- Thoughts of self-harm or suicide.
- Inability to pass urine or severe lower abdominal pain.
- Severe eye pain with blurred vision, halos, or redness.
- Unusual bruising, bleeding, or signs of infection such as fever and sore throat.
If experiencing severe symptoms, call emergency services immediately.
What is codep 37 tablet used for?
This medicine is a prescription-only oral tablet that combines chlordiazepoxide, a benzodiazepine, with imipramine, a tricyclic antidepressant. It is used for short-term relief of anxiety that occurs together with depressive symptoms. It can cause drowsiness, dry mouth, dizziness, and dependence, so it must be taken exactly as prescribed and never stopped suddenly.
- Generic Name: Chlordiazepoxide + Imipramine
- Manufacturer: Mayflower India
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 codep 37 tablet के बारे में (Hindi Summary)
उपयोग: यह दवा क्लोरडायजेपॉक्साइड और इमिप्रामिन का संयोजन है, जिसका उपयोग वयस्कों में चिंता और अवसाद के लक्षणों के अल्पकालिक इलाज के लिए किया जाता है। क्लोरडायजेपॉक्साइड मन को शांत करता है और घबराहट कम करता है, जबकि इमिप्रामिन मूड को धीरे-धीरे सुधारता है। यह दवा नींद की समस्या, बेचैनी और तनाव से जुड़े शारीरिक लक्षणों में भी मदद कर सकती है। यह केवल डॉक्टर के पर्चे पर मिलती है और इसे डॉक्टर की सलाह के बिना शुरू या बंद नहीं करना चाहिए। इस दवा को अचानक बंद करने से घबराहट, अनिद्रा और दौरे जैसी समस्याएं हो सकती हैं, इसलिए इसे धीरे-धीरे कम करना जरूरी है।
साइड इफेक्ट्स: इस दवा के आम दुष्प्रभावों में नींद आना, चक्कर आना, मुंह सूखना, धुंधली दृष्टि, कब्ज और पेशाब करने में कठिनाई शामिल हैं। कुछ लोगों में भूख बढ़ना, वजन बढ़ना, पसीना आना और हाथ कांपना भी देखा जाता है। खड़े होने पर चक्कर आ सकते हैं, इसलिए धीरे-धीरे उठें। गंभीर दुष्प्रभाव कम होते हैं, लेकिन धड़कन अनियमित होना, दौरे पड़ना, पीलिया, गंभीर एलर्जी या मन में आत्मघाती विचार आना आपातकालीन स्थिति हो सकती है। ऐसा होने पर तुरंत डॉक्टर से संपर्क करें।
सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें और अपनी मर्जी से मात्रा न बदलें। यह दवा नींद और सुस्ती बढ़ाती है, इसलिए जब तक आपको इसका असर समझ न आ जाए, वाहन चलाना या मशीन चलाना न करें। इस दवा के साथ शराब बिल्कुल न लें, क्योंकि इससे गंभीर नींद, सांस की समस्या और बेहोशी हो सकती है। अपने डॉक्टर को अपनी सभी दवाओं, बीमारियों और एलर्जी के बारे में बताएं। गर्भावस्था या स्तनपान के दौरान इस दवा का उपयोग डॉक्टर की सलाह के बिना न करें। इस दवा को अचानक बंद न करें, क्योंकि इससे withdrawal के लक्षण हो सकते हैं।
💊 codep 37 tablet Uses & Benefits
[{"condition":"Anxiety with depressive symptoms","description":"This medicine is used for short-term relief of anxiety that occurs together with low mood, worry, and tension, where a benzodiazepine and a tricyclic antidepressant are combined for rapid calming plus mood support.","evidence":"Established for short-term use under specialist supervision"},{"condition":"Anxiety-related sleep disturbance","description":"The sedative effect of chlordiazepoxide can help patients with anxiety who have difficulty falling asleep, while imipramine addresses underlying depressive features.","evidence":"Limited, short-term use only"},{"condition":"Tension states with somatic complaints","description":"Sometimes prescribed when anxiety presents with muscle tension, restlessness, and physical symptoms such as headache or stomach discomfort.","evidence":"Limited"}]
Off-label uses: [{"condition":"Irritable bowel syndrome with anxiety","description":"Occasionally used off-label when anxiety clearly worsens bowel symptoms, but this is not a standard approved use.","evidence":"Limited"},{"condition":"Chronic pain with depression and anxiety","description":"Imipramine has some evidence in certain chronic pain syndromes, and the combination may be chosen when anxiety and depression coexist, but this is not a primary approved indication.","evidence":"Limited"}]
Primary treatment for: Anxiety with depressive symptoms
Also treats: Anxiety-related sleep disturbance, Tension states with somatic complaints, Mixed anxiety and depression in adults
📋 Drug Information
| Generic Name(s) | Chlordiazepoxide + Imipramine |
| Brand Name | Codep 37 Tablet |
| Manufacturer | Mayflower India |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | NEURO CNS |
| Action Class | Benzodiazepine + Tricyclic Antidepressant |
| Route of Administration | Oral. This medicine is taken by mouth as a tablet, usually with water, exactly as prescribed by your doctor |
| Storage | Store this medicine at room temperature, between 15°C and 30°C, in a dry place. Keep it in its original container with the lid tightly closed, away from direct sunlight, heat, and moisture. Do not store it in the bathroom. Keep all medicines out of the reach of children and pets. |
| Shelf Life | The shelf life of this medicine is typically 24 to 36 months from the date of manufacture, depending on the manufacturer's packaging. Always check the expiry date printed on the pack and do not use the medicine after that date. Expired medicines should be disposed of safely according to local guidelines. |
| WHO Guideline | Not established from the available information. This fixed-dose combination is not specifically recommended in current World Health Organization guidelines for anxiety or depression, and treatment should follow national and local prescribing guidance. |
| ICMR Guideline | Not established from the available information. The Indian Council of Medical Research has not published a specific recommendation for this fixed-dose combination, and clinicians should follow standard Indian psychiatric prescribing practices and local regulations. |
👨⚕️ 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 through two complementary mechanisms. Chlordiazepoxide binds to a specific site on the GABA-A receptor complex and increases the effect of the brain's natural calming chemical, GABA, which reduces excessive nerve activity and produces anxiolytic, sedative, and muscle-relaxant effects. Imipramine blocks the reuptake of serotonin and norepinephrine in the brain, increasing their availability in the synaptic gap and gradually improving mood and reducing depressive symptoms. Imipramine also blocks muscarinic acetylcholine receptors, histamine H1 receptors, and alpha-1 adrenergic receptors, which explains many of its side effects such as dry mouth, sedation, and low blood pressure on standing.
Mechanism Steps
💡 How to Take codep 37 tablet
Strength: This medicine is supplied as an immediate-release oral tablet containing chlordiazepoxide and imipramine. The exact strength of each ingredient is not established from the available information. Always check the label on your pack for the strength prescribed for you.
Dosage Information
| Adult Dosage | The dose of this medicine must be individualized by a qualified clinician based on the indication, severity of symptoms, age, weight, and liver and kidney function. In general, treatment is started at the lowest effective dose and increased slowly according to response and tolerability. Because this medicine contains a benzodiazepine, it is usually prescribed for short-term use only, and the doctor will decide the duration and any gradual tapering plan. Do not change the dose or stop the medicine on your own, and never take more than the prescribed amount. |
| Pediatric Dosage | Pediatric dosing is not established from available information. This medicine is generally not recommended for children and adolescents unless a specialist prescribes it for a specific reason. Consult a pediatrician or child psychiatrist for any treatment in this age group. |
| Elderly Dosage | Older adults are more sensitive to the sedative, anticholinergic, and blood pressure-lowering effects of this medicine. They are at higher risk of confusion, falls, fractures, memory problems, and urinary retention. Treatment, if used at all, should be started at the lowest possible dose and increased very slowly, with regular review. Long-term use should be avoided whenever possible. |
| Renal Impairment | Patients with significant kidney impairment may clear the metabolites of chlordiazepoxide and imipramine more slowly, which can increase sedation and other side effects. Dose adjustment and close monitoring may be needed. The exact dose reduction must be determined by a qualified clinician based on kidney function tests. |
| Hepatic Impairment | Patients with liver disease may metabolize both chlordiazepoxide and imipramine more slowly, leading to higher blood levels and increased side effects. This medicine should be used with caution or avoided in severe liver disease. If used, the dose should be reduced and liver function monitored closely under specialist supervision. |
| Maximum Daily Dose | The maximum daily dose of this medicine must be determined by the prescribing doctor based on the individual patient's condition, age, and other medicines. Do not exceed the dose prescribed by your doctor. Taking more than the prescribed dose can cause dangerous sedation, heart rhythm problems, and breathing difficulty. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of codep 37 tablet
✅ 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 | |
| Opioid painkillers | Major | |
| SSRIs and SNRIs | Major | |
| Clonidine | Major | |
| CYP2D6 inhibitors | Moderate | |
| Anticholinergic medicines | Moderate | |
| Cimetidine | Moderate | |
| Thyroid medicines | Moderate | |
| Antacids | Minor |
🚨 Major Interactions
- Monoamine oxidase inhibitors (MAOIs)
- Alcohol and other central nervous system depressants
- Opioid painkillers and sleeping pills
- Other antidepressants such as SSRIs and SNRIs
- Clonidine and other blood pressure medicines
⚡ Moderate Interactions
- CYP2D6 inhibitors such as fluoxetine, paroxetine, and quinidine
- Anticholinergic medicines such as oxybutynin and benztropine
- Thyroid medicines
- Cimetidine
- Oral contraceptives
🍷 Alcohol Interaction
Alcohol must be avoided completely while taking this medicine. Alcohol adds to the sedative effect of chlordiazepoxide and the central nervous system depression caused by imipramine, which can lead to severe drowsiness, poor coordination, falls, breathing difficulty, and even coma. Alcohol can also worsen depression and anxiety and increase the risk of dangerous heart rhythm changes. If you have consumed alcohol, do not take this medicine until you have discussed it with your doctor.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Known allergy to chlordiazepoxide, imipramine, or any other ingredient of this medicine.","Use of monoamine oxidase inhibitors currently or within the last 14 days.","Untreated narrow-angle glaucoma.","Significant urinary retention or prostate enlargement with difficulty passing urine.","Severe liver disease.","Acute alcohol or drug intoxication.","Recent heart attack or severe heart conduction problems.","Pregnancy and breastfeeding, unless a specialist decides otherwise.","Children and adolescents, unless specifically prescribed by a specialist."]
⚠️ Warnings & Precautions
["This medicine can cause significant drowsiness and impair your ability to drive or operate machinery.","Do not stop this medicine suddenly, because withdrawal symptoms including seizures can occur.","Chlordiazepoxide can cause dependence and tolerance, so use should be short-term and supervised.","Imipramine can worsen suicidal thoughts, especially in young adults at the start of treatment.","Avoid alcohol and other sedative medicines completely.","Tell your doctor if you have glaucoma, prostate problems, heart disease, thyroid disease, seizures, or liver or kidney disease.","This medicine can cause dry mouth, constipation, and blurred vision due to anticholinergic effects.","Older adults are more sensitive to sedation, confusion, falls, and memory problems.","Do not share this medicine with anyone else, even if they have similar symptoms.","Keep all follow-up appointments so your doctor can monitor your response and adjust the dose."]
🤱 Lactation Safety
This medicine is not recommended during breastfeeding. Both chlordiazepoxide and imipramine can pass into breast milk and may cause sedation, poor feeding, and breathing difficulties in the infant. If breastfeeding is essential, a specialist should decide whether to use this medicine or an alternative, and the baby should be monitored closely for drowsiness and feeding problems.
💊 Overdose Management
Overdose of this medicine is a medical emergency because imipramine can cause serious heart rhythm problems, seizures, coma, and breathing difficulty, while chlordiazepoxide adds deep sedation. If an overdose is suspected, call emergency services immediately and take the patient to the nearest hospital. Do not try to make the person vomit. Treatment in hospital may include activated charcoal if given early, close heart monitoring, intravenous fluids, medicines to control seizures and heart rhythm, and supportive care for breathing. The patient should be observed for at least several hours because symptoms can worsen over time.
⏰ Missed Dose
If you miss a dose of this medicine, take it as soon as you remember, unless it is almost time for your next dose. If it is almost time for the next dose, skip the missed dose and continue with your regular schedule. Never take two doses at the same time to make up for a missed dose, because this can increase sedation and other side effects. If you miss several doses in a row, contact your doctor for advice rather than adjusting the dose yourself.
Additional Safety Advice
Take this medicine exactly as prescribed by your doctor, and never change the dose or stop it suddenly on your own. Because this medicine causes drowsiness and slows reaction time, avoid driving, cycling, or operating heavy machinery until you know how it affects you. Do not drink alcohol while taking this medicine, as alcohol can dangerously increase sedation and breathing problems. Tell your doctor about all other medicines you take, especially painkillers, sleeping pills, antihistamines, blood pressure medicines, and other antidepressants, because serious interactions can occur. If you have glaucoma, prostate enlargement, heart disease, thyroid problems, liver or kidney disease, or a history of seizures, inform your doctor before starting this medicine. Do not use this medicine for longer than your doctor advises, because chlordiazepoxide can become habit-forming. If you are pregnant, planning pregnancy, or breastfeeding, speak to your doctor immediately, as this medicine may not be safe for the baby. Keep this medicine in its original container, away from children, and never share it with anyone else.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Older adults are more sensitive to the sedative, anticholinergic, and blood pressure-lowering effects of this medicine. They are at higher risk of confusion, memory problems, falls, fractures, urinary retention, and constipation. If this medicine is used at all in older adults, it should be started at the lowest possible dose, increased very slowly, and reviewed frequently. Long-term use should be avoided whenever possible, and non-medicine treatments should be considered first.
🤰 Pregnancy Planning (TTC)
If you are planning pregnancy, speak to your doctor before trying to conceive. This medicine is generally not recommended during pregnancy because both chlordiazepoxide and imipramine may affect the baby. Your doctor may switch you to a safer treatment or adjust your plan well before conception. Do not stop this medicine on your own, because sudden withdrawal can be dangerous. Use effective contraception while taking this medicine unless your doctor advises otherwise.
🏥 Post-Surgery Considerations
Inform your surgeon and anaesthetist that you take this medicine before any surgery. Chlordiazepoxide can increase the sedative effect of anaesthesia, and imipramine can affect heart rhythm and blood pressure during surgery. Your doctor may advise adjusting or temporarily stopping the medicine before the procedure, but this must only be done under medical supervision. After surgery, you may need closer monitoring for drowsiness, breathing problems, and blood pressure changes.
🦷 Dental Procedures
Tell your dentist that you take this medicine before any dental procedure. The dry mouth caused by imipramine can increase the risk of tooth decay and gum problems, so good oral hygiene and regular dental check-ups are important. The sedative effect of chlordiazepoxide may add to the effect of sedatives used in dentistry, so your dentist may need to adjust the treatment plan. If you need a procedure under sedation or general anaesthesia, inform the dental team about all your medicines.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
This medicine can cause drowsiness, dizziness, and impaired coordination, especially at the start of treatment or after a dose increase. Avoid driving, cycling, swimming, or using heavy gym equipment until you know how the medicine affects you. Stand up slowly during exercise to avoid dizziness from low blood pressure. If you feel faint, stop exercising, sit or lie down, and inform your doctor. Gentle activities such as walking and stretching are usually safer than high-intensity or balance-demanding exercises while on this medicine.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine can affect your work and daily life, mainly because of drowsiness, dizziness, and reduced concentration. You should not drive, operate heavy machinery, or perform tasks that require full alertness until you know how the medicine affects you. Some people find it hard to concentrate at work, especially in the first few weeks. Discuss your work schedule with your doctor, who may adjust the timing or dose to reduce daytime sedation. Avoid important decisions or high-risk tasks until your response to the medicine is clear.
🛑 When to Stop This Medicine
Do not stop this medicine on your own. Your doctor will decide when and how to stop it based on your symptoms, response, and side effects. In general, the dose is reduced gradually over days to weeks to prevent withdrawal symptoms such as anxiety, insomnia, sweating, tremors, and seizures. If you experience severe side effects, an allergic reaction, or any red-flag symptom, contact your doctor immediately, as they may advise stopping the medicine sooner under medical supervision. Always ask your doctor before making any change.
📅 Long-Term Use Effects
Long-term use of this medicine is generally not recommended. Prolonged use of the chlordiazepoxide component can lead to tolerance, dependence, withdrawal symptoms, memory problems, and falls, especially in older adults. Long-term imipramine use may cause weight gain, dental problems from dry mouth, sexual difficulties, and heart rhythm changes. Regular follow-up is needed to review the ongoing need for this medicine, monitor side effects, and plan a gradual tapering schedule when appropriate. Blood tests, blood pressure checks, and sometimes heart monitoring may be required during long-term treatment.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
A structured talking therapy that helps change unhelpful thought patterns and behaviours related to anxiety and depression.
Evidence: Well-establishedFirst-line medicines for depression and many anxiety disorders, with a different side effect profile and lower dependence risk than benzodiazepines.
Evidence: Well-establishedTechniques such as deep breathing, progressive muscle relaxation, and meditation can reduce anxiety and improve sleep.
Evidence: ModerateAerobic exercise has been shown to improve mood and reduce anxiety in many people.
Evidence: ModerateImproving sleep habits, reducing caffeine and alcohol, and maintaining a regular routine can support recovery.
Evidence: Moderate💉 Vaccination Considerations
💉 If You're Getting Vaccinated
There are no specific vaccine interactions established for this medicine. However, if you are unwell with a fever or infection, your doctor may advise delaying vaccination until you recover. Always inform the vaccination provider about all medicines you take, including this one.
📦 Storage Guide
✅ DO
Store at room temperature between 15°C and 30°C.
❌ DON'T
Do not store in the refrigerator unless the label specifically says so.
✅ DO
Keep the tablets in the original container with the lid tightly closed.
❌ DON'T
Do not transfer the tablets to unmarked containers or pill boxes for long-term storage.
✅ DO
Keep away from direct sunlight, heat, and moisture.
❌ DON'T
Do not store in the bathroom or near the kitchen stove.
✅ DO
Keep out of the reach of children and pets.
❌ DON'T
Do not share this medicine with anyone else.
✅ DO
Check the expiry date before use and dispose of expired tablets safely.
❌ DON'T
Do not use the medicine after the expiry date or if the tablet looks damaged or discoloured.
✈️ Traveling with This Medicine
When travelling, carry this medicine in its original labelled container along with a copy of your prescription and a doctor's letter explaining why you take it. Keep it in your hand luggage rather than checked baggage, so it is not lost or exposed to extreme temperatures. Store it away from direct sunlight and heat, and do not leave it in a hot car. If you are crossing time zones, ask your doctor how to adjust the timing of your doses. Do not stop the medicine during travel, and carry enough supply for the entire trip plus a few extra days in case of delays. Check the customs rules of your destination country for controlled medicines, because chlordiazepoxide may be regulated.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: The calming effect of the chlordiazepoxide component usually starts within 30 to 60 minutes, which is why it is often taken at bedtime. The antidepressant effect of imipramine takes longer, usually two to four weeks of regular use, before you notice a clear improvement in mood.
A: No. Stopping suddenly can cause withdrawal symptoms such as anxiety, insomnia, sweating, tremors, and even seizures. Your doctor will reduce the dose gradually over days to weeks to keep you safe.
A: No. Alcohol greatly increases the sedative effects of this medicine and can cause severe drowsiness, breathing problems, falls, and even coma. Avoid alcohol completely while taking this medicine.
A: The chlordiazepoxide component can cause dependence and tolerance, especially with long-term use. This is why the medicine is usually prescribed for short-term use and why the dose must be reduced gradually when stopping.
A: This medicine is generally not recommended during pregnancy because it may harm the baby. If you are pregnant, planning pregnancy, or breastfeeding, speak to your doctor immediately so that a safer option can be considered.
A: If you remember within a short time, take the missed dose. If it is almost time for your next dose, skip the missed dose and continue your regular schedule. Never take two doses together, and contact your doctor if you miss several doses.
🤔 Common Patient Concerns
🛑 Myths vs. Facts
- Myth: This medicine is a simple sleeping pill and can be taken whenever I feel stressed.
Fact: This medicine contains a benzodiazepine and a tricyclic antidepressant. It is a prescription medicine for specific conditions and should never be used casually or without medical supervision. - Myth: I can stop this medicine as soon as I feel better.
Fact: Stopping suddenly can cause withdrawal symptoms, including anxiety, insomnia, and seizures. The dose must be reduced gradually under medical supervision. - Myth: This medicine is safe to take with alcohol because it helps me relax.
Fact: Alcohol greatly increases the sedative effects and can cause dangerous breathing problems, falls, and even coma. Alcohol must be avoided completely. - Myth: This medicine will work immediately for depression.
Fact: The antidepressant effect of imipramine usually takes two to four weeks to appear. The calming effect of chlordiazepoxide is faster, but it does not treat depression itself. - Myth: Natural remedies can replace this medicine without any risk.
Fact: Some natural products can interact with this medicine and cause serious effects. Always consult your doctor before starting or stopping any remedy.
🔄 Alternative Options
Generic Alternatives
- Chlordiazepoxide and imipramine combination tablets from other manufacturers, if available and prescribed.
- Separate prescriptions of chlordiazepoxide and imipramine, which allow the doctor to adjust each ingredient independently.