Oral Cutaneous Fistulas Medication
- Author: James Cade, DDS; Chief Editor: William D James, MD more...
Medication Summary
The goals of pharmacotherapy are to eradicate infection, reduce morbidity, and prevent complications.
Antibiotics
Class Summary
Therapy must be comprehensive and cover all likely pathogens in the context of this clinical setting.
Penicillin VK (Truxcillin, Veetids)
Inhibits biosynthesis of cell wall mucopeptide. Bactericidal against sensitive organisms when adequate concentrations are reached and most effective during the stage of active multiplication. Inadequate concentrations may produce only bacteriostatic effects. DOC in treating common orofacial infections caused by aerobic gram-positive cocci and anaerobes. Orofacial infections include cellulitis, periapical abscess, periodontal abscess, acute suppurative pulpitis, oronasal fistula, pericoronitis, osteitis, osteomyelitis, and postsurgical and posttraumatic infections. No longer recommended for dental procedure prophylaxis.
Amoxicillin (Amoxil, Larotid, Polymox, Trimox)
Analog of ampicillin with broad-spectrum bactericidal activity against gram-positive and gram-negative microorganisms. Interferes with cell wall mucopeptide synthesis during active multiplication, resulting in bactericidal activity against susceptible bacteria.
Amoxicillin and clavulanate (Augmentin)
Drug combination used to treat bacteria resistant to beta-lactam antibiotics.
In children >3 mo, base dosing protocol on amoxicillin content. Due to different amoxicillin/clavulanic acid ratios in 250-mg tab (250/125) vs 250-mg chewable tab (250/62.5), do not use 250-mg tab until child weighs >40 kg.
Erythromycin (E.E.S., E-Mycin)
Inhibits bacterial growth, possibly by blocking dissociation of peptidyl tRNA from ribosomes, causing RNA-dependent protein synthesis to arrest. For treatment of staphylococcal and streptococcal infections.
In children, age, weight, and severity of infection determine proper dosage. When bid dosing is desired, half of total daily dose may be administered q12h. For more severe infections, double the dose.
Clindamycin (Cleocin)
Inhibits bacterial growth, possibly by blocking dissociation of peptidyl tRNA from ribosomes, causing RNA-dependent protein synthesis to arrest.
Semisynthetic antibiotic produced by 7(S)-chloro-substitution of 7(R)-hydroxyl group of parent compound lincomycin.
Metronidazole (Flagyl)
Oral synthetic antiprotozoal and antibacterial agent, 1-(beta-hydroxyethyl)-2-methyl-5-nitroimidazole. Active in vitro against most obligate anaerobes but does not appear to possess clinically relevant activity against facultative anaerobes or obligate aerobes.
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