Bromhexol

# bromhexol ## Overview - **Classification**: Mucolytic agent - **Mechanism**: Increases lysosomal activity in goblet cells, depolymerizing mucopolysaccharides to reduce sputum viscosity. Also increases serous glandular secretion, improving mucociliary clearance. ## Primary Indications 1. **Acute & Chronic Bronchopulmonary Diseases** - Conditions associated with abnormal, viscous mucus secretion and impaired mucus transport. 2. **Productive Cough** - Facilitates expectoration of phlegm. 3. **Adjunct in Respiratory Infections** - Helps clear mucus in bronchitis, pneumonia, etc. ## Adult Dosing ### Standard Dosing **Acute & Chronic Bronchopulmonary Diseases** - **Dose**: **8 mg** - **Frequency**: Three times daily (**TID**) - **Route**: Oral (tablet, syrup) - **Maximum Daily Dose**: **24 mg** (though some formulations/indications allow up to 48 mg for short periods, 24 mg is standard). ### Dose Adjustments - **Renal Impairment**: Use with caution. Consider reduced dose or extended intervals in severe impairment due to potential accumulation of metabolites. - **Hepatic Impairment**: Use with caution. Consider reduced dose or extended intervals in severe impairment due to potential for reduced clearance. - **Elderly Patients**: No specific dose adjustment needed. Generally well-tolerated; monitor for adverse effects. ## Pediatric Dosing ### Neonates (0-28 days) - **Special Notes**: Not generally recommended for infants under 2 years due to limited safety data and risk of bronchial obstruction from increased secretions in very young infants who may struggle with clearance. ### Infants (1-23 months) - **Dose**: **2 mg** - **Frequency**: Three times daily (**TID**) or four times daily (**QID**) - **Maximum**: **8 mg/day** (or **16 mg/day** for QID) - **Special Notes**: Use only under medical supervision. Often available as a pediatric syrup formulation. ### Children (2-12 years) - **Dose**: **2-6 years**: **4 mg**; **6-12 years**: **8 mg** - **Frequency**: Three times daily (**TID**) - **Maximum**: **2-6 years**: **12 mg/day**; **6-12 years**: **24 mg/day** - **Special Notes**: Syrup formulation often preferred for ease of administration. ### Adolescents (13-18 years) - **Dose**: Approach adult dosing; **8 mg** - **Frequency**: Three times daily (**TID**) - **Maximum**: **24 mg/day** ## Safety Information ### Contraindications - **Absolute**: Hypersensitivity to bromhexol or any excipients. - **Relative**: History of gastric or duodenal ulcer, due to potential for gastric irritation. - **Relative**: Pre-existing bronchial obstruction or impaired cough reflex (risk of mucus retention). ### Common Adverse Effects - **Common (1-10%)**: Nausea, vomiting, diarrhea, indigestion, abdominal pain. - **Less Common (0.1-1%)**: Headache, dizziness, sweating. - **Serious but Rare**: Severe skin reactions (e.g., Stevens-Johnson syndrome, Toxic Epidermal Necrolysis), angioedema, anaphylactic reactions. Discontinue immediately if skin or mucosal lesions appear. ### Key Drug Interactions - **Antibiotics (e.g., Amoxicillin, Cefuroxime, Doxycycline)**: Bromhexol may enhance penetration of antibiotics into bronchial secretions, potentially improving therapeutic efficacy. - **Antitussives**: Avoid concomitant use with cough suppressants, as this may lead to dangerous accumulation of secretions due to inhibited cough reflex. ## Monitoring & Follow-up - **Before Treatment**: Assess cough characteristics, sputum production, and medical history (especially GI ulcers). - **During Treatment**: Monitor for resolution of symptoms and adverse effects, particularly GI upset. - **Clinical Signs**: Watch for any new skin rashes or mucosal lesions (stop medication immediately), difficulty breathing, or worsening cough. ## Clinical Pearls - 💡 **Hydration is Key**: Advise patients to drink plenty of fluids to aid mucolytic action and thin secretions further. - 💡 **Timing**: Can be taken with or without food. Taking with food may minimize GI upset. - 💡 **Severe Skin Reactions**: Counsel patients to seek immediate medical attention if they develop a rash or blistering. - 💡 **Avoid Antitussives**: Emphasize not to combine with cough suppressants to prevent dangerous mucus build-up. > **⚠️ Important**: This information is for educational purposes only. Always consult current prescribing information, local guidelines, and clinical judgment before prescribing.