Duration of Clindamycin for Skin and Soft Tissue Infections
For most skin and soft tissue infections (SSTIs), clindamycin should be administered for 7-14 days, with treatment duration individualized based on clinical response. 1
Recommended Duration by Infection Type
Surgical Site Infections (SSIs)
- Standard duration: 7-14 days 1
- For localized surgical site infections with adequate source control, a shorter course (5-7 days) may be sufficient 1
- Treatment can be discontinued when patients have:
- Defervesced
- Normalized white blood cell count
- Returned to normal gastrointestinal function 1
Skin and Soft Tissue Infections
- Uncomplicated SSTIs: 7-10 days
- Complicated SSTIs: 10-14 days
- For β-hemolytic streptococcal infections: minimum 10 days 2
Dosing Recommendations
Adults
- Serious infections: 150-300 mg every 6 hours
- More severe infections: 300-450 mg every 6 hours 2
Pediatric Patients
- Serious infections: 8-16 mg/kg/day divided into 3-4 equal doses
- More severe infections: 16-20 mg/kg/day divided into 3-4 equal doses 2
Clinical Decision Points for Duration
Assess severity of infection:
- Mild/moderate: Consider shorter duration (7 days)
- Severe: Consider longer duration (10-14 days)
Monitor for clinical improvement:
- Resolution of erythema and induration
- Normalization of temperature
- Normalization of heart rate and white blood cell count
- Return of normal gastrointestinal function 1
Consider source control:
- If adequate surgical drainage has been performed, shorter durations may be appropriate
- Inadequate source control may require longer treatment
Special Considerations
- For necrotizing soft tissue infections, shorter courses (≤7 days) after adequate surgical debridement may be as effective as longer courses 3
- Persistent signs of infection beyond 7 days of treatment warrant further diagnostic investigation rather than simply extending antibiotic duration 4
- Clindamycin resistance is increasingly common, particularly in B. fragilis group isolates 1, so culture results should guide therapy when available
Potential Pitfalls
- Overtreatment risk: Unnecessarily prolonged antibiotic therapy increases risk of adverse effects and antimicrobial resistance
- Clostridium difficile risk: Monitor for diarrhea during therapy; discontinue if significant diarrhea occurs 2
- Inadequate source control: Failure to improve may indicate need for surgical intervention rather than extended antibiotic duration
- Resistance concerns: Increasing clindamycin resistance, particularly in MRSA and B. fragilis, may limit effectiveness 1
By following these guidelines and adjusting treatment based on clinical response, appropriate duration of clindamycin therapy can be determined to effectively treat skin and soft tissue infections while minimizing risks of adverse effects and antimicrobial resistance.