Clavum

# Clavum ## Overview - **Classification**: Penicillin-class antibiotic, Beta-lactam/Beta-lactamase inhibitor combination - **Mechanism**: Amoxicillin inhibits bacterial cell wall synthesis. Clavulanate irreversibly inactivates beta-lactamase enzymes, protecting amoxicillin. ## Primary Indications 1. **Acute Bacterial Otitis Media (ABOM)** - Infection of the middle ear 2. **Acute Bacterial Sinusitis (ABS)** - Inflammation of nasal sinuses 3. **Community-Acquired Pneumonia (CAP)** - Lung infection 4. **Skin and Soft Tissue Infections (SSTI)** - Infections of skin and underlying tissues 5. **Urinary Tract Infections (UTI)** - Infections of the urinary system ## Adult Dosing ### Standard Dosing **Acute Bacterial Otitis Media / Sinusitis / Lower Respiratory Tract Infections** - **Dose**: **875 mg amoxicillin / 125 mg clavulanate** - **Frequency**: Every 12 hours (BID) - **Route**: Oral - **Duration**: 10-14 days for sinusitis/CAP; 7-10 days for otitis media **Skin and Soft Tissue Infections / Urinary Tract Infections** - **Dose**: **500 mg amoxicillin / 125 mg clavulanate** - **Frequency**: Every 8 hours (TID) - **Route**: Oral - **Duration**: 7-10 days ### Dose Adjustments - **Renal Impairment**: - CrCl >30 mL/min: No adjustment needed. - CrCl 10-30 mL/min: **500 mg / 125 mg** every 12 hours. - CrCl <10 mL/min: **500 mg / 125 mg** every 24 hours. - Hemodialysis: **500 mg / 125 mg** every 24 hours, plus an additional dose during/after dialysis. - **Hepatic Impairment**: Use with caution. Monitor liver function. - **Elderly Patients**: Adjust based on renal function. Generally well-tolerated at standard doses. ## Pediatric Dosing (based on Amoxicillin component) ### Neonates (0-28 days) - **Dose**: Generally avoided due to immature renal function and potential for clavulanate accumulation. - **Frequency**: If used, **30 mg/kg/day** (amoxicillin) divided every 12 hours. - **Maximum**: Not established; use with extreme caution and expert guidance. - **Special Notes**: Consult infectious disease specialist. Lower clavulanate ratio formulations preferred (e.g., 7:1). ### Infants (1-12 months) - **Indication (ABOM)**: - **Dose**: **25-45 mg/kg/day** (amoxicillin) - **Frequency**: Divided every 12 hours (BID) - **Maximum**: Limit clavulanate to 6.4 mg/kg/day. - **Special Notes**: Use 200 mg/28.5 mg per 5mL or 400 mg/57 mg per 5mL oral suspension. ### Children (1-12 years) - **Mild-Moderate Infections (e.g., mild ABOM, SSTI)**: - **Dose**: **25-45 mg/kg/day** (amoxicillin) - **Frequency**: Divided every 12 hours (BID) - **Maximum**: **875 mg amoxicillin / 125 mg clavulanate per dose**. - **Severe/Recurrent Infections (e.g., severe ABOM, Sinusitis, CAP)**: - **Dose**: **80-90 mg/kg/day** (amoxicillin) - **Frequency**: Divided every 12 hours (BID) - **Maximum**: **875 mg amoxicillin / 125 mg clavulanate per dose**. - **Special Notes**: Use appropriate suspension (e.g., 400 mg/57 mg per 5mL or 600 mg/42.9 mg per 5mL) to avoid excessive clavulanate. ### Adolescents (13-18 years) - **Dose**: Follow **adult dosing** guidelines. - **Maximum**: **875 mg amoxicillin / 125 mg clavulanate** per dose, or **2000 mg amoxicillin / 125 mg clavulanate** (extended-release) once daily. ## Safety Information ### Contraindications - **Absolute**: History of severe hypersensitivity reaction (e.g., anaphylaxis, SJS) to Clavum or other beta-lactams. - **Absolute**: History of Clavum-associated cholestatic jaundice or hepatic dysfunction. - **Absolute**: History of penicillin-associated jaundice/hepatic impairment. ### Common Adverse Effects - **Very Common (>10%)**: Diarrhea - **Common (1-10%)**: Nausea, vomiting, rash, candidiasis (oral/vaginal) - **Serious but Rare**: Cholestatic jaundice, hepatitis, C. difficile-associated diarrhea (CDAD), severe cutaneous adverse reactions (SCARs), anaphylaxis. ### Key Drug Interactions - **Warfarin**: May increase INR. Monitor INR closely, adjust warfarin dose as needed. - **Methotrexate**: May increase methotrexate levels, increasing toxicity. Monitor for toxicity. - **Allopurinol**: Increased incidence of rash, especially in patients with hyperuricemia. Avoid concurrent use if possible. - **Oral Contraceptives**: May reduce efficacy of oral contraceptives. Advise backup contraception. ## Monitoring & Follow-up - **Before Treatment**: Assess for penicillin/beta-lactam allergies. - **During Treatment**: Monitor for signs of allergic reaction, diarrhea, or liver dysfunction (jaundice, dark urine). - **Clinical Signs**: Assess improvement of infection symptoms within 48-72 hours. ## Clinical Pearls - 💡 **Tip 1**: Administer **with food** or milk to minimize gastrointestinal upset and enhance absorption. - 💡 **Tip 2**: Advise patients to **complete the full course** of therapy, even if symptoms improve, to prevent resistance. - 💡 **Tip 3**: Oral suspensions should be **refrigerated** after reconstitution and discarded after 10 days. Shake well before each use. > **⚠️ Important**: This information is for educational purposes only. Always consult current prescribing information, local guidelines, and clinical judgment before prescribing.