Ambroxol Hydrochloride: Dosage, Side Effects, Brands & Clinical Use | MedexInfo
Ambroxol Hydrochloride
Rx/OTC
Therapeutic ClassMucolytic / Expectorant
Common Dose30–60 mg 3 times daily (adults)
Max / 24h180 mg (adults)
PregnancyCategory C – Use only if clearly needed
Indications ▼
Acute and chronic respiratory diseases with viscid or excessive mucus (e.g., bronchitis, chronic obstructive pulmonary disease)
Facilitation of mucus clearance in respiratory tract
Adjunctive therapy in asthma or cystic fibrosis with mucus hypersecretion
Mechanism & Pharmacokinetics ▼
Mechanism: Stimulates surfactant production, depolymerizes mucus fibers, increases ciliary clearance; enhances expectoration.
Pharmacokinetics: Rapid oral absorption; Tmax ~1 hr. Bioavailability 70–90%. Metabolized in liver. Half-life 7–12 hrs. Excreted mainly via urine as metabolites.
Dosage & Administration ▼
| Patient Category | Recommended Dose | Max / 24h |
|---|---|---|
| Adults | 30 mg 3 times daily or 75 mg twice daily (extended-release) | 180 mg |
| Children 6–12 yrs | 15 mg 3 times daily | 45 mg |
| Children 2–5 yrs | 7.5 mg 3 times daily | 22.5 mg |
| Infants 6 mo–2 yrs | 3–5 mg 3 times daily | 15 mg |
Side Effects ▼
Common: Nausea, vomiting, diarrhea, mild abdominal discomfort
Rare: Skin rash, headache, dizziness, hypersensitivity reactions
Serious: Anaphylaxis (very rare)
Contraindications ▼
Hypersensitivity to Ambroxol or excipients
Severe liver or kidney impairment (use with caution)
Drug Interactions ▼
No major clinically significant interactions reported
May enhance absorption of antibiotics in respiratory tract (synergistic effect)
Pregnancy & Lactation ▼
Use only if potential benefit justifies risk (Category C)
Limited data on breastfeeding; avoid or use with caution
Clinical / Research Summary ▼
Therapeutic Role: Ambroxol Hydrochloride is a mucolytic and expectorant used to improve mucus clearance in respiratory conditions such as chronic bronchitis, asthma, and cystic fibrosis.
Mechanism-Based Evidence: Ambroxol stimulates surfactant production, reduces mucus viscosity, and enhances mucociliary transport, facilitating easier expectoration and improved airway function.
Clinical Effectiveness: Studies show that Ambroxol improves sputum quality, reduces coughing frequency, and enhances pulmonary function tests in patients with chronic respiratory diseases. It is also used as an adjunct in pneumonia and other acute respiratory infections to aid mucus clearance.
Safety Profile: Generally well-tolerated. Side effects may include gastrointestinal disturbances, mild skin reactions, or hypersensitivity. Rarely, severe allergic reactions may occur.
Research Directions: Current research explores Ambroxol's potential neuroprotective effects, its role in combination therapy with antibiotics for respiratory infections, and long-term safety in pediatric and elderly populations.
Patient Counseling Points ▼
Take after meals to reduce gastrointestinal discomfort
Maintain adequate hydration to facilitate mucus clearance
Do not exceed recommended dose
Report allergic reactions or persistent cough
Storage & Handling ▼
Store at 15–25°C, protect from moisture and light
Keep out of reach of children
Brand Names (Bangladesh & Global) ▼
Bangladesh (Local Brands):
Global / International Brands:
Medical Disclaimer: This summary is for informational purposes only. Follow guidance from a qualified healthcare professional for dosage, interactions, and use.
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