Respidex Syrup: 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 shortness of breath
- Severe dizziness or fainting
- Rapid or irregular heartbeat
- Confusion or hallucinations
- Severe allergic reaction (rash, swelling, difficulty swallowing)
- Blood in vomit or stool
- Seizures
If experiencing severe symptoms, call emergency services immediately.
What is respidex syrup used for?
This medicine is a combination syrup containing diphenhydramine (an antihistamine) and ammonium chloride (an expectorant). It is used to relieve cough and allergy symptoms such as sneezing, runny nose, and itchy throat. It works by blocking histamine and thinning mucus. It should be taken as directed by a doctor, usually every 4-6 hours, and should not be used for more than a few days without medical advice.
- Generic Name: Diphenhydramine (14.08mg) + Ammonium Chloride (0.138mg)
- Manufacturer: Auroma Lifescience Pvt Ltd
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 respidex syrup के बारे में (Hindi Summary)
उपयोग: यह दवा खांसी और एलर्जी के लक्षणों जैसे छींक, नाक बहना, गले में खुजली और आंखों में पानी आना के इलाज के लिए उपयोग की जाती है। यह डिपेनहाइड्रामाइन और अमोनियम क्लोराइड का संयोजन है, जो खांसी को कम करने और बलगम को पतला करने में मदद करता है।
साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में नींद आना, चक्कर आना, मुंह सूखना, धुंधली दृष्टि और पेट खराब होना शामिल हैं। गंभीर दुष्प्रभाव दुर्लभ हैं लेकिन इनमें भ्रम, मतिभ्रम, तेज धड़कन और एलर्जी प्रतिक्रिया शामिल हो सकती है। यदि कोई गंभीर लक्षण दिखे तो तुरंत डॉक्टर से संपर्क करें।
सुरक्षा सलाह: इस दवा की अनुशंसित खुराक से अधिक न लें। गाड़ी चलाने या मशीनरी चलाने से बचें क्योंकि यह नींद का कारण बन सकती है। इस दवा के साथ शराब न पिएं। यदि आप गर्भवती हैं, गर्भवती होने की योजना बना रही हैं या स्तनपान करा रही हैं, तो उपयोग से पहले डॉक्टर से परामर्श करें। बच्चों की पहुंच से दूर रखें। यदि लक्षण कुछ दिनों में ठीक न हों तो डॉक्टर से मिलें।
💊 respidex syrup Uses & Benefits
[{"condition":"Cough associated with upper respiratory tract infections","description":"This medicine helps relieve cough by reducing throat irritation and thinning mucus, making it easier to expel.","evidence":"Well-established"},{"condition":"Allergic rhinitis","description":"Diphenhydramine provides relief from sneezing, runny nose, and itching due to allergies.","evidence":"Well-established"},{"condition":"Common cold","description":"This medicine may alleviate cough and nasal congestion associated with the common cold.","evidence":"Supportive"}]
Off-label uses: [{"condition":"Insomnia","description":"Due to its sedative properties, diphenhydramine is sometimes used off-label for short-term sleep aid.","evidence":"Limited"},{"condition":"Motion sickness","description":"Diphenhydramine may be used off-label to prevent nausea and vomiting associated with motion sickness.","evidence":"Limited"}]
Primary treatment for: Cough and allergic rhinitis
Also treats: Common cold, Upper respiratory tract infections
📋 Drug Information
| Generic Name(s) | Diphenhydramine (14.08mg) + Ammonium Chloride (0.138mg) |
| Brand Name | respidex syrup |
| Manufacturer | Auroma Lifescience Pvt Ltd |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | RESPIRATORY |
| Action Class | |
| Route of Administration | Oral |
| Storage | Store at room temperature (15-30°C) in a dry place, away from direct sunlight. Keep the bottle tightly closed. |
| Shelf Life | 24 months from the date of manufacture. |
| 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 combines two active ingredients. Diphenhydramine is a first-generation antihistamine that competitively blocks histamine H1 receptors, reducing allergic symptoms and exerting a sedative effect on the central nervous system. Ammonium chloride is an expectorant that irritates the gastric mucosa, reflexively increasing respiratory tract secretions, which helps thin mucus and facilitates its removal by coughing.
Mechanism Steps
💡 How to Take respidex syrup
Strength: Each 5 mL of syrup contains Diphenhydramine 14.08 mg and Ammonium Chloride 0.138 mg.
Dosage Information
| Adult Dosage | The usual adult dose of this medicine is 5 to 10 mL (one to two teaspoons) every 4 to 6 hours as needed, not to exceed 60 mL in 24 hours. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. Do not exceed the recommended dose. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician for appropriate dosing in children. |
| Elderly Dosage | Elderly patients may be more sensitive to the effects of diphenhydramine, especially sedation and anticholinergic effects. Start with a lower dose and monitor closely. Dose must be individualized by a qualified clinician. |
| Renal Impairment | Use with caution in patients with renal impairment. Dose adjustment may be necessary. Consult a doctor for individualized dosing. |
| Hepatic Impairment | Use with caution in patients with hepatic impairment. Dose adjustment may be necessary. Consult a doctor for individualized dosing. |
| Maximum Daily Dose | The maximum daily dose for adults is 60 mL of this syrup in 24 hours. Do not exceed this dose. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of respidex syrup
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| MAO inhibitors | Major | |
| Alcohol | Major | |
| Benzodiazepines | Major | |
| Tricyclic antidepressants | Moderate | |
| Fluoxetine | Moderate | |
| Metoclopramide | Minor |
🚨 Major Interactions
- MAO inhibitors
- Alcohol
- Other CNS depressants (e.g., benzodiazepines, opioids)
⚡ Moderate Interactions
- Anticholinergic drugs (e.g., atropine, tricyclic antidepressants)
- CYP2D6 inhibitors (e.g., fluoxetine, paroxetine)
🍷 Alcohol Interaction
Alcohol increases the sedative effects of diphenhydramine and should be avoided while taking this medicine. It can also increase the risk of dizziness, drowsiness, and impaired coordination.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Hypersensitivity to diphenhydramine or ammonium chloride","Newborns and premature infants","Nursing mothers","Patients with narrow-angle glaucoma","Patients with stenosing peptic ulcer","Patients with bladder neck obstruction","Patients with severe liver or kidney disease"]
⚠️ Warnings & Precautions
["May impair ability to drive or operate machinery.","Avoid alcohol and other CNS depressants.","Use with caution in elderly patients due to increased risk of confusion and falls.","Use with caution in patients with asthma or COPD.","Do not use for chronic cough without medical advice.","May cause dry mouth, constipation, and urinary retention.","Consult a doctor if symptoms persist beyond 7 days."]
🤱 Lactation Safety
Diphenhydramine passes into breast milk and may cause drowsiness in the infant. Consult your doctor before using this medicine while breastfeeding.
💊 Overdose Management
Overdose may cause severe drowsiness, hallucinations, seizures, respiratory depression, and cardiac arrhythmias. Seek immediate medical attention. Treatment is supportive and symptomatic. Gastric lavage may be considered if within 1-2 hours of ingestion. There is no specific antidote.
⏰ 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 dose.
Additional Safety Advice
Do not exceed the recommended dose of this medicine. Avoid driving or operating heavy machinery until you know how this medicine affects you, as it can cause drowsiness. Do not drink alcohol while taking this medicine because it can increase drowsiness and other side effects. If you are pregnant, planning to become pregnant, or breastfeeding, consult your doctor before using this medicine. Do not use this medicine for a chronic cough or a cough with excessive mucus without medical advice. Keep out of reach of children. If symptoms do not improve within a few days or worsen, seek medical attention.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients are more sensitive to the sedative and anticholinergic effects of diphenhydramine. They may experience confusion, dizziness, and falls. Use with caution and consider lower doses. Consult a doctor before use.
🤰 Pregnancy Planning (TTC)
If you are planning to become pregnant, consult your doctor before using this medicine. Diphenhydramine is generally considered safe in pregnancy, but ammonium chloride should be used with caution.
🏥 Post-Surgery Considerations
Consult your doctor before using this medicine after surgery, as it may interact with anesthetics and other medications. It can also increase the risk of drowsiness and respiratory depression.
🦷 Dental Procedures
Inform your dentist if you are taking this medicine, as it can cause dry mouth and may interact with sedatives used during dental procedures.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
Avoid strenuous exercise while taking this medicine, especially if you experience drowsiness or dizziness. Light activity is fine if you feel well.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine can cause drowsiness and impair your ability to drive or operate machinery. Avoid these activities until you know how the medicine affects you. It may also reduce your concentration, so be cautious with tasks requiring alertness.
🛑 When to Stop This Medicine
Stop taking this medicine and consult your doctor if your symptoms do not improve within 7 days, if they worsen, or if you experience any severe side effects. Do not stop abruptly if you have been taking it for a long time without medical advice.
📅 Long-Term Use Effects
Long-term use of this medicine is not recommended without medical supervision. Prolonged use of diphenhydramine may lead to tolerance, dependence, and cognitive effects. Ammonium chloride may cause metabolic acidosis with prolonged use. Regular monitoring may be required if used for extended periods.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
Helps loosen mucus and relieve cough.
Evidence: SupportiveSoothes the throat and reduces cough.
Evidence: SupportiveHelps clear nasal congestion.
Evidence: Supportive💉 Vaccination Considerations
💉 If You're Getting Vaccinated
There are no known interactions between this medicine and vaccines. However, if you are scheduled for vaccination, inform your healthcare provider about all medicines you are taking.
📦 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 traveling, carry this medicine in its original packaging with the prescription label. Bring a copy of your prescription in case of customs checks. Store it in a cool, dry place away from direct sunlight. If crossing time zones, continue your regular dosing schedule as prescribed. Do not leave it in a hot car.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: This medicine usually starts working within 30 minutes after oral administration.
A: Consult your doctor before combining with other cold medicines, as they may contain similar ingredients and increase the risk of side effects.
A: Pediatric dosing is not established. Consult a pediatrician for appropriate use in children.
A: 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 dose.
A: Consult your doctor before using this medicine if you are pregnant or planning to become pregnant.
🤔 Common Patient Concerns
🛑 Myths vs. Facts
- Myth: This medicine can cure any type of cough.
Fact: This medicine is effective for cough associated with allergies or colds, but not for all types of cough, such as those caused by bacterial infections or asthma. - Myth: It is safe to take this medicine for a long time.
Fact: Prolonged use without medical supervision can lead to side effects and may mask underlying conditions. Use only as directed.
🔄 Alternative Options
Generic Alternatives
- Diphenhydramine and Ammonium Chloride Syrup
Brand Alternatives
- Respidex Syrup