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Table 3.2
common bacteria & infections
| Generic (brand) | Dosage form | Route of administration | Common dose |
|---|---|---|---|
| Amoxicillin (Amoxil, Trimox) | Tablet, chewable tablet, capsule, suspension | Oral | Pediatric: 20-45 mg/kg/day in divided doses Adult: 250-875 mg taken 2-3 times a day |
| Ampicillin | Capsule, suspension, injection | Oral, IM, IV | PO: 250-500 mg QID IM/IV: varies by age of patient, typical doses range in hundreds of milligrams a day in divided doses |
| Penicillin G | Injection, powder for injection | IM, IV | Varies by age of patient Typical doses range in thousands to millions of units a day in divided doses |
| Penicillin V (Pen VK) | Tablet, solution | Oral | Pediatric: 25-50 mg/kg/day in divided doses Adult: 125-250 mg every 6-8 hours |
| Nafcillin | Injection | IV | 500-1,000 mg every 4 hours |
| Oxacillin | Solution, injection | Oral, IV | PO: Pediatric: 50-100 mg/kg/day in divided doses Adult: 500-1,000 mg every 4-6 hours IV: varies by age of patient, typical doses range in hundreds of milligrams a day in divided doses. |
| Piperacillin | Injection | IM, IV | Varies depending on route and type of infection treated Usually given multiple times a day |
| Amoxicillin + clavulanate (augmentin) | |||
| Tablet, chewable tablet, oral suspension | Oral | Pediatric: 20-45 mg/kg/day in divided doses Adult: 250-500 mg every 8-12 hours | |
| Ampicillin +sulbactam (unasyn) | Injection | IM, IV | Pediatric: 300 mg/kg/day in divided doses Adult: 1.5-3 g every 6 hours |
| Piperacillin +tazobactam | Injection | IV | Pediatric: varies by age and weight of patient, usually given multiple times a day Adult: 3.375 g every 6 hours |
| Ticarcillin +clavulanate (timentin) | Injection | IV | Varies by age of patient Typical doses range in hundreds of milligrams a day in divided doses |
| Dicloxacillin | Capsule | Oral | Pediatric: 12.5 mg/kg/day divided doses Adult: 125-250 mg every 6 hours |