Management of Dog Bites

First-Line Antibiotic Therapy

The Infectious Diseases Society of America recommends amoxicillin-clavulanate (Augmentin) 875/125 mg twice daily as the preferred oral antibiotic for dog bites, providing coverage against both aerobic and anaerobic bacteria commonly found in these wounds 1
Amoxicillin-clavulanate effectively targets the polymicrobial nature of dog bite infections, including Pasteurella species, staphylococci, streptococci, and anaerobes 2
The combination of amoxicillin with clavulanate addresses the beta-lactamase producing organisms often present in animal bites 1

Current guidelines from the Infectious Diseases Society of America do not recommend adding mupirocin to systemic antibiotic therapy for dog bites 1
The polymicrobial nature of dog bite wounds requires systemic antibiotic coverage rather than topical therapy alone 2

For penicillin-allergic patients, alternative options include doxycycline 100 mg twice daily, which has excellent activity against Pasteurella multocida 1
Fluoroquinolones plus metronidazole can be used for anaerobic coverage in penicillin-allergic patients 1
Moxifloxacin 400 mg daily can be used as monotherapy, covering both aerobes and anaerobes 1

Thorough wound cleansing with irrigation is essential and can significantly reduce infection risk 3
Tetanus prophylaxis should be administered if vaccination is not current within the past 10 years 1
Consider rabies prophylaxis in consultation with local health officials, although the specific details of this consideration are not provided in the cited references 1

Using first-generation cephalosporins, macrolides, or clindamycin alone has poor activity against Pasteurella multocida commonly found in dog bites, according to the Clinical Infectious Diseases journal 1
Relying on topical antibiotics alone for dog bite wounds is insufficient given the polymicrobial nature and potential depth of these injuries 2, 1

Signs of deep infection, such as disproportionate pain near bones or joints suggesting periosteal penetration, which could indicate septic arthritis or osteomyelitis, require immediate medical attention, as stated by the Infectious Diseases Society of America 4
Hand bites are often more serious than wounds on fleshy body parts due to proximity to tendons, joints, and bones, and have a higher risk for complications like tendinitis, septic arthritis, and osteomyelitis requiring 4-6 weeks of antibiotics, according to the Clinical Infectious Diseases journal 4

A rabies risk assessment should be completed based on whether the dog can be observed for 10 days, and healthy dogs, cats, and ferrets should be confined and observed daily during this period, as recommended by the Centers for Disease Control and Prevention 5, 6
If the dog was stray, unwanted, or cannot be located, rabies prophylaxis may be necessary, and contact with the local health department is crucial if the dog develops any signs of illness during the observation period, as advised by the MMWR Recommendations and Reports 5