Ambroxol

# Ambroxol ## Overview - **Classification**: Mucolytic, secretolytic, expectorant - **Mechanism**: Increases bronchial secretions, reduces mucus viscosity, and stimulates pulmonary surfactant production, facilitating mucus clearance. ## Primary Indications 1. **Acute Bronchopulmonary Diseases**: Relief of symptoms associated with abnormal mucus secretion and impaired mucus transport. 2. **Chronic Bronchopulmonary Diseases**: As an adjunct for conditions like COPD and chronic bronchitis. 3. **Sore Throat**: Local anesthetic effect for symptom relief (lozenges). ## Adult Dosing ### Standard Dosing **Acute & Chronic Bronchopulmonary Diseases** - **Dose**: **30 mg** (tablet) or **10 mL** (syrup) - **Frequency**: **3 times daily** for 2-3 days, then **2 times daily** - **Route**: Oral - **Maximum**: **90 mg/day** **Sore Throat (Lozenges)** - **Dose**: **20 mg** (lozenge) - **Frequency**: Up to **6 times daily** - **Route**: Oral (buccal absorption) - **Duration**: Do not use for more than **3 days** without medical advice. ### Dose Adjustments - **Renal Impairment**: Reduce dose or extend intervals in severe renal impairment (e.g., CrCl < **30 mL/min**). - **Hepatic Impairment**: Reduce dose or extend intervals in severe hepatic impairment. - **Elderly Patients**: No specific adjustment, but monitor for reduced renal/hepatic function. ## Pediatric Dosing ### Neonates (0-28 days) - **Dose**: Not routinely recommended. If essential, **7.5 mg** (oral solution) - **Frequency**: **2-3 times daily** (approx. **1.2-1.6 mg/kg/day** divided) - **Maximum**: **22.5 mg/day** - **Special Notes**: Use only under strict medical supervision due to limited data. ### Infants (1-12 months) - **Dose**: **7.5 mg** (oral solution/drops) - **Frequency**: **2-3 times daily** - **Maximum**: **22.5 mg/day** ### Children (1-12 years) - **1-2 years**: **7.5 mg** (oral solution/drops) **3 times daily**. Max **22.5 mg/day**. - **2-5 years**: **15 mg** (oral solution) **2-3 times daily**. Max **45 mg/day**. - **6-12 years**: **30 mg** (oral solution/tablet) **2 times daily** or **15 mg** **3 times daily**. - **Maximum**: **60 mg/day** for 6-12 years (or **90 mg/day** as adult lower limit). ### Adolescents (13-18 years) - **Dose**: Follow adult dosing recommendations. - **Maximum**: **90 mg/day** ## Safety Information ### Contraindications - **Absolute**: Hypersensitivity to ambroxol or related compounds (bromhexine). - **Absolute**: History of severe cutaneous reactions (e.g., Stevens-Johnson Syndrome, Toxic Epidermal Necrolysis). - **Relative**: Peptic ulcer disease (use with caution). ### Common Adverse Effects - **Common (1-10%)**: Nausea, taste disturbance (dysgeusia), oral/pharyngeal hypoesthesia. - **Uncommon (0.1-1%)**: Vomiting, diarrhea, dyspepsia, abdominal pain, dry mouth. - **Serious but Rare**: Anaphylactic reactions, angioedema, severe skin reactions (SJS, TEN). ### Key Drug Interactions - **Cough Suppressants**: Not recommended; may lead to dangerous accumulation of bronchial secretions. - **Antibiotics (e.g., Amoxicillin, Cefuroxime, Erythromycin, Doxycycline)**: Ambroxol can enhance penetration of these antibiotics into bronchial secretions. (Generally considered beneficial). ## Monitoring & Follow-up - **Before Treatment**: No specific baseline tests usually required. - **During Treatment**: Monitor for signs of gastrointestinal upset or skin reactions. - **Clinical Signs**: Watch for worsening cough, dyspnea, or any new skin rash (discontinue immediately). ## Clinical Pearls - 💡 **Hydration**: Ensure adequate fluid intake to maximize mucolytic effect. - 💡 **Timing**: Can be taken with or without food. - 💡 **Sputum**: Advise patients that increased sputum production is expected. - 💡 **Lozenges**: For sore throat, lozenges provide local anesthetic effect. > **⚠️ Important**: This information is for educational purposes only. Always consult current prescribing information, local guidelines, and clinical judgment before prescribing.