astus dx expectorant - Phenylephrine (NA) + Chlorpheniramine Maleate (NA) medicine

Astus DX Expectorant: Complete Medicine Guide

No reviews yet
🏭 Simpson Brawn Pharmaceuticals 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 22, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for symptomatic relief of allergic rhinitis and common cold.
Reviewed by
SaathiMed Expert Panel | Oct 22, 2026
🩺
Medically Fact-Checked & Clinically Verified by SaathiMed Clinical Review Board
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 face, lips, or throat
  • Fast, irregular, or pounding heartbeat
  • Severe headache or blurred vision
  • Confusion, hallucinations, or seizures
  • Inability to urinate
  • Yellowing of skin or eyes
  • Severe rash or hives

If experiencing severe symptoms, call emergency services immediately.

What is astus dx expectorant used for?

This medicine is a combination of phenylephrine (a decongestant) and chlorpheniramine maleate (an antihistamine) used to relieve nasal congestion, sneezing, and runny nose due to cold or allergies. It works by shrinking blood vessels in the nose and blocking histamine. It may cause drowsiness, so avoid driving. Do not use for more than 7 days without consulting a doctor.

  • Generic Name: Phenylephrine + Chlorpheniramine Maleate
  • Manufacturer: Simpson Brawn Pharmaceuticals
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 astus dx expectorant के बारे में (Hindi Summary)

उपयोग: यह दवा एलर्जी और सर्दी-जुकाम से होने वाली नाक बंद, छींक, बहती नाक और आंखों में खुजली जैसी समस्याओं में राहत देती है। इसमें फेनिलएफ्रिन नाक की रक्त वाहिकाओं को सिकोड़कर जमाव कम करता है, और क्लोरफेनिरामाइन हिस्टामिन को रोककर छींक और बहती नाक को कम करता है। यह दवा डॉक्टर की सलाह पर ही लेनी चाहिए और 7 दिन से ज्यादा इस्तेमाल नहीं करनी चाहिए।

साइड इफेक्ट्स: आम दुष्प्रभावों में नींद आना, मुंह सूखना, चक्कर आना, सिरदर्द और जी मिचलाना शामिल हैं। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन तेज धड़कन, सांस लेने में कठिनाई, दाने या सूजन हो तो तुरंत डॉक्टर से मिलें।

सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। शराब न पिएं क्योंकि इससे नींद और बढ़ सकती है। गाड़ी चलाने या मशीन चलाने से बचें जब तक आपको पता न चले कि यह दवा आप पर कैसा असर करती है। अगर आपको हाई ब्लड प्रेशर, दिल की बीमारी, थायरॉइड, ग्लूकोमा या प्रोस्टेट की समस्या है तो डॉक्टर को बताएं। 7 दिन से ज्यादा इस्तेमाल न करें।

💡 Did You Know? The Indian pharmaceutical market is expected to reach $130 billion by 2030.

💊 astus dx expectorant Uses & Benefits

[{"condition":"Allergic rhinitis","description":"Relieves sneezing, runny nose, itching, and watery eyes by blocking histamine and reducing nasal congestion.","evidence":"Well-established"},{"condition":"Common cold","description":"Provides symptomatic relief of nasal congestion and sneezing associated with viral upper respiratory infections.","evidence":"Well-established"},{"condition":"Sinusitis","description":"Helps reduce nasal congestion and pressure by constricting nasal blood vessels.","evidence":"Moderate"},{"condition":"Vasomotor rhinitis","description":"May reduce runny nose and congestion in non-allergic rhinitis.","evidence":"Limited"}]

Off-label uses: [{"condition":"Eustachian tube dysfunction","description":"Sometimes used to relieve congestion and improve ear pressure.","evidence":"Limited"},{"condition":"Motion sickness","description":"Chlorpheniramine component may help with motion sickness due to its anticholinergic effects.","evidence":"Limited"}]

Primary treatment for: Allergic rhinitis

Also treats: Common cold, Sinusitis, Vasomotor rhinitis

📋 Drug Information

Generic Name(s)Phenylephrine + Chlorpheniramine Maleate
Brand NameAscoril D Plus Syrup Sugar Free
ManufacturerSimpson Brawn Pharmaceuticals
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassRESPIRATORY
Action ClassDecongestant + Antihistamine
Route of AdministrationOral
StorageStore at room temperature (15-30°C) in a dry place, away from direct sunlight and moisture.
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 with food or milk to reduce stomach upset.
2
Avoid alcohol and other sedatives while taking this medicine.
3
Do not drive or operate machinery until you know how this medicine affects you.
4
Do not use for more than 7 days without consulting your doctor.
5
If you have high blood pressure, heart disease, or diabetes, inform your doctor before taking this medicine.
6
Keep out of reach of children.
7
If symptoms persist or worsen, seek medical advice.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Nasal congestion
This medicine is commonly prescribed for this.
Likely Use
✅
Sneezing
This medicine helps relieve sneezing due to allergies.
Likely Use
❌
Fever
This medicine is not a primary fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionPhenylephrine is absorbed from the gastrointestinal tract but undergoes extensive first-pass metabolism, resulting in low oral bioavailability. Chlorpheniramine is well absorbed from the gastrointestinal tract with a bioavailability of approximately 25-50%.
DistributionPhenylephrine distributes widely into body tissues. Chlorpheniramine is widely distributed and crosses the blood-brain barrier, which accounts for its sedative effects.
Protein BindingPhenylephrine: Not established from the available information. Chlorpheniramine: Approximately 70% bound to plasma proteins.
MetabolismPhenylephrine is metabolized in the liver and gut wall by monoamine oxidase and sulfation. Chlorpheniramine is metabolized in the liver by cytochrome P450 enzymes, primarily CYP2D6.
Half-LifePhenylephrine: 2-3 hours. Chlorpheniramine: 12-43 hours (variable).
ExcretionPhenylephrine and its metabolites are excreted primarily in urine. Chlorpheniramine and its metabolites are excreted in urine.
BioavailabilityPhenylephrine: Approximately 38% due to first-pass metabolism. Chlorpheniramine: Approximately 25-50%.
Onset of ActionPhenylephrine: 15-30 minutes. Chlorpheniramine: 30-60 minutes.
Peak Plasma TimePhenylephrine: 0.5-2 hours. Chlorpheniramine: 2-6 hours.
Duration of ActionPhenylephrine: 4-6 hours. Chlorpheniramine: 4-6 hours (immediate-release).

How It Works

This medicine combines two active ingredients. Phenylephrine is a sympathomimetic amine that selectively stimulates alpha-1 adrenergic receptors on vascular smooth muscle, causing vasoconstriction in the nasal mucosa, which reduces swelling and congestion. Chlorpheniramine maleate is a first-generation antihistamine that competitively blocks histamine H1 receptors, thereby preventing histamine-mediated symptoms such as sneezing, itching, and increased vascular permeability. Additionally, chlorpheniramine has anticholinergic properties that contribute to drying of secretions.

Mechanism Steps

1
Alpha-1 adrenergic receptor activation: Phenylephrine binds to alpha-1 receptors on nasal blood vessels, causing vasoconstriction and reduced blood flow, which decreases swelling and congestion.
2
Histamine H1 receptor blockade: Chlorpheniramine competes with histamine for H1 receptors on effector cells, preventing histamine-induced sneezing, itching, and increased vascular permeability.
3
Anticholinergic effect: Chlorpheniramine also blocks muscarinic receptors, reducing secretions and contributing to dry mouth and nose.

💡 How to Take astus dx expectorant

Strength: Not established from the available information.

1Take this medicine orally with a glass of water.
2Take with food or milk to reduce stomach upset.
3Do not crush or chew extended-release formulations (if applicable).
4Follow the prescribed dose and frequency exactly.
5Do not take more than the recommended dose.

Dosage Information

Adult DosageThe usual adult dose is one tablet or 10 mL of syrup every 4 to 6 hours as needed, not to exceed 6 doses in 24 hours. However, the exact dose and frequency must be individualized by a qualified clinician based on the indication, age, weight, renal and hepatic function, and response to treatment. Do not self-medicate beyond 7 days.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageElderly patients are more sensitive to the effects of this medicine. Use with caution, usually at lower doses, and monitor for confusion, constipation, and urinary retention. Dose must be individualized by a clinician.
Renal ImpairmentUse with caution in renal impairment. Dose adjustment may be necessary. Consult a doctor.
Hepatic ImpairmentUse with caution in hepatic impairment. Dose adjustment may be necessary. Consult a doctor.
Maximum Daily DoseThe maximum daily dose for adults is 6 doses (tablets or 10 mL syrup) in 24 hours. Do not exceed this limit.

Dosage Timeline

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

🍽️ Food Timing Guide

With food
Take with meals
Reduces stomach upset.
Grapefruit
Avoid
May increase drug levels.
Caffeine
Limit
May increase nervousness and insomnia.

⏰ What to Do If You Miss a Dose

📌 Less than half the dosing interval has passed
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than half the dosing interval has passed
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of astus dx expectorant

✅ Common Side Effects

Drowsiness (Common (10-20%))
Avoid driving or operating machinery. If persistent, consult doctor.
Dry mouth (Common (10-15%))
Sip water, chew sugarless gum. Usually resolves.
Dizziness (Common (5-10%))
Rise slowly from sitting or lying position. Avoid alcohol.
Headache (Common (5-10%))
Rest, hydrate. If severe, consult doctor.
Nausea (Common (5-10%))
Take with food or milk. If persistent, consult doctor.

🚨 Serious Side Effects

Severe allergic reaction (anaphylaxis) (Rare (<0.1%))
Seek immediate medical attention if you experience rash, itching, swelling of face/lips/throat, or difficulty breathing.
Fast or irregular heartbeat (Rare (<0.1%))
Contact doctor immediately if you notice palpitations or chest discomfort.
Hallucinations or seizures (Very rare (<0.01%))
Seek emergency medical help.
Urinary retention (Rare (<0.1%))
Consult doctor if you cannot urinate.

⚠️ Rare Side Effects

Blood dyscrasias (e.g., agranulocytosis, thrombocytopenia)
Report unusual bruising, bleeding, or fever to doctor.
Hepatotoxicity
Report yellowing of eyes or skin, dark urine, or abdominal pain.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
MAOIs Major
Tricyclic antidepressants Major
Beta-blockers Major
CNS depressants Moderate
Anticholinergics Moderate
CYP2D6 inhibitors Moderate
Antacids Minor
Digoxin Minor

🚨 Major Interactions

  • Monoamine oxidase inhibitors (MAOIs)
  • Tricyclic antidepressants
  • Beta-blockers

⚡ Moderate Interactions

  • CNS depressants (alcohol, sedatives, opioids)
  • Anticholinergics (e.g., atropine, benztropine)
  • CYP2D6 inhibitors (e.g., fluoxetine, paroxetine)

🍷 Alcohol Interaction

Alcohol increases the sedative and CNS depressant effects of chlorpheniramine. Avoid alcohol while taking this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Severe hypertension","Coronary artery disease","Hyperthyroidism","Narrow-angle glaucoma","Urinary retention","MAOI therapy within 14 days","Known hypersensitivity to any component"]

⚠️ Warnings & Precautions

["May cause drowsiness; avoid driving or operating machinery.","Avoid alcohol and other CNS depressants.","Use with caution in elderly patients (increased risk of confusion, constipation, urinary retention).","Use with caution in patients with cardiovascular disease, diabetes, or thyroid disorders.","Do not use for more than 7 days without medical advice.","Keep out of reach of children."]

🤱 Lactation Safety

Both phenylephrine and chlorpheniramine may pass into breast milk. Chlorpheniramine may cause drowsiness in the infant. Consult a doctor before use during breastfeeding.

💊 Overdose Management

Overdose may cause severe drowsiness, confusion, tachycardia, hypertension, hallucinations, seizures, and respiratory depression. Seek immediate medical attention. Treatment is supportive and symptomatic. 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

General Safety

Take this medicine exactly as prescribed. Do not exceed the recommended dose. Avoid alcohol and other central nervous system depressants as they can increase drowsiness. Do not drive or operate heavy machinery until you know how this medicine affects you. Inform your doctor if you have high blood pressure, heart disease, diabetes, thyroid problems, glaucoma, or prostate enlargement. Do not use for more than 7 days without medical advice. Keep out of reach of children. If pregnant or breastfeeding, consult your doctor before use.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are more sensitive to the effects of this medicine, especially drowsiness, confusion, constipation, and urinary retention. Use with caution and lower doses may be needed.

🤰 Pregnancy Planning (TTC)

Consult your doctor before taking this medicine if you are pregnant, planning to become pregnant, or breastfeeding. The safety of this combination during pregnancy is not fully established.

🏥 Post-Surgery Considerations

This medicine may interact with anesthetics and other medications used during surgery. Inform your surgeon and anesthesiologist that you are taking this medicine.

🦷 Dental Procedures

This medicine may cause dry mouth, which can increase the risk of dental problems. Inform your dentist if you are taking this medicine before any dental procedure.

💚 Lifestyle Tips for Better Results

🏃
Stay hydrated to thin nasal secretions.
🥗
Use a humidifier to keep nasal passages moist.
😴
Avoid allergens such as dust, pollen, and pet dander.
💧
Get plenty of rest to support recovery.
🧘
Wash hands frequently to prevent infections.

🏋️ Exercise Considerations

This medicine may cause drowsiness and dizziness. Avoid strenuous exercise or activities requiring alertness until you know how it affects you.

🥗 Diet Recommendations

Drink warm fluids like soups and herbal teas.
Avoid cold drinks and ice cream.
Include vitamin C-rich fruits and vegetables.
Avoid alcohol and caffeine.

💼 Impact on Daily Work & Life

This medicine may cause drowsiness, which can affect your ability to drive or operate machinery. Avoid such activities until you know how it affects you. It may also cause dry mouth, so keep water handy.

🛑 When to Stop This Medicine

Stop taking this medicine if symptoms persist beyond 7 days, if you experience serious side effects, or if your doctor advises discontinuation. Do not stop abruptly if you have been taking it for a long time without consulting your doctor.

📅 Long-Term Use Effects

Long-term use of this medicine is not recommended. Prolonged use may lead to rebound congestion, tolerance, and increased risk of side effects such as hypertension, urinary retention, and CNS effects. Use only for short-term relief and consult a doctor if symptoms persist beyond 7 days.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Saline nasal irrigation

Helps clear nasal passages and reduce congestion without medication.

Evidence: Well-established
Steam inhalation

Can temporarily relieve nasal congestion.

Evidence: Limited
Allergen avoidance

Reducing exposure to allergens can prevent symptoms.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

This medicine does not interact with vaccines. However, if you are ill with a fever, consult your doctor before vaccination.

📦 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 the prescription. Store at room temperature and protect from moisture. If traveling across time zones, adjust dosing intervals as advised by your doctor. Check customs regulations for carrying medications.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 35-year-old woman with seasonal allergic rhinitis
She was prescribed this medicine for sneezing and runny nose. She took it as directed and noticed significant relief within 30 minutes. She experienced mild drowsiness, so she avoided driving. She was advised not to use it for more than 7 days.
💡 Lesson: This medicine provides rapid symptomatic relief but may cause drowsiness; avoid driving and follow the prescribed duration.
👤 A 60-year-old man with common cold and nasal congestion
He took this medicine for 3 days and felt better, but developed dry mouth and dizziness. He consulted his doctor, who advised him to stop the medicine and use saline nasal drops instead. His symptoms resolved without complications.
💡 Lesson: Elderly patients are more prone to side effects; lower doses or alternative treatments may be needed.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine usually starts working within 30 minutes to 1 hour after taking it.

Q: Can I take it at night?

A: Yes, but it may cause drowsiness, which can be helpful at night. However, avoid driving or operating machinery.

Q: Is it safe for children?

A: Pediatric dosing is not established. Consult a pediatrician before giving this medicine to children.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine long-term?
  • Will it affect my blood pressure?
  • Can I drive after taking this medicine?
  • Does it interact with my other medicines?
  • What if I miss a dose?
  • Can I drink alcohol while taking this?

🔄 Substitutes for astus dx expectorant

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: This medicine can cure the common cold.
    Fact: This medicine only relieves symptoms; it does not cure the underlying viral infection.
  • Myth: It is safe to take this medicine for weeks.
    Fact: It should not be used for more than 7 days without medical advice due to risk of side effects.
  • Myth: It is safe to drive after taking this medicine.
    Fact: It may cause drowsiness; avoid driving until you know how it affects you.

🔄 Alternative Options

Generic Alternatives

  • Phenylephrine + Chlorpheniramine Maleate combination products

Brand Alternatives

  • Astus DX Expectorant

📊 Comparison with Similar Medicines

[{"medicine":"Astus DX Expectorant","active_ingredients":"Phenylephrine + Chlorpheniramine","route":"Oral","common_use":"Nasal congestion, allergic rhinitis"},{"medicine":"Pseudoephedrine + Chlorpheniramine","active_ingredients":"Pseudoephedrine + Chlorpheniramine","route":"Oral","common_use":"Nasal congestion, allergic rhinitis"}]

😊 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