Antimicrobial agent tables





















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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Jun 18, 2016 | Posted by in INFECTIOUS DISEASE | Comments Off on Antimicrobial agent tables

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Name Usual dose Cost (AWP unit price)* Change in absorption with food Pregnancy classa Dose interval adjustment for reduced CrCl Supplemental dose in dialysis Major toxicity
Generic Brand Adult Child >50 10–50 10 HD PD
Amikacinc Amikin 15 mg/kg/d; divide q8–12h IV 10–40 mg IT q24h 15 mg/kg/d; divide q8–12h 250 mg/mL injection; 4 mL vial = $4.05 n.a. D q8–12h q12–48h >48h 2.5–3.75 mg/kg pHD 2.5 mg/kg/d IV or 3–4 mg/2 L dialysate removed Renal toxicity, vestibular or auditory toxicity, CNS reactions, neuromuscular blockade (rare)
Amoxicillin Amoxil 0.25–0.5 g PO q8h or 875 mg PO q12h or 1000 mg PO q12h (Helicobacter pylori) 6.6–13.3 mg/kg PO q8h (neonate: 0–7 d, 25 mg/kg q12h; 1–4 wk 25 mg/kg q8h) 250 mg capsule: $0.25 500 mg capsule: $0.44 875 mg tablet: $0.87 400 mg/5 mL (50 mL) oral susp: $4.85 Decreased B q8h q8–12h q16–24h 0.25–0.5 g 0.25 g q12h Allergic reactions (rare: anaphylactic), rash, diarrhea, nausea, vomiting
Amoxicillin–clavulanate Augmentin 0.25–0.5 g PO q8h 875 mg PO q12h 2000 mg PO q12h XR tablets 6.6–13.3 mg/kg PO q8h 250/150 mg tablet: $4.11 500/125 mg tablet: $3.78 875/125 mg tablet: $5.05 XR 1000/62.5 mg tablet: $3.87 400 mg/5 mL (50 mL) oral susp: $68.93 Decreased B q8h q12h q12–24h 0.25 g PO b Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting, cholestatic hepatitis
Ampicillin Ampen, Omnipen 0.5–1 g PO q8h; 1–2 g IV q4–6h 12.5–25 mg/kg PO q8h
6.25–25 mg/kg IV q8h
250 mg capsule: $0.22
500 mg capsule: $0.40
250 mg IV vial: $3.98 1000 mg IV vial: $8.20
Decreased B q4–6h q8h q12–24h 0.5–2 g 0.25 g PO q12h or 1–4 g IV q24h Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Ampicillin–sulbactam Unasyn 1.5–3 g IV q6h 25–50 mg/kg IV q6h 1.5 g IV vial: $7.73
3 g IV vial: $14.60
n.a. B q6–8h q8–12h q24h 2 g ampicillin pHD b Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Azithromycin Zithromax 5 g day 1; 0.25 g days 2–5 PO b 250 mg tablet: $7.78
500 mg tablet: $21.21 500 mg IV vial: $7.20
100 mg/5 mL (15 mL) oral susp: $32.93
Decreased B Usual Usual Usual b b GI disturbance, headache
Azlocillin 2–4 g IV q4–6h 75 mg/kg IV q6h Data not available n.a. B q4–6h q8h q12h 3 g pHD b Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Aztreonam Azactam 1–2 g IV q6–8h 30–50 mg/kg q6–12h (n.a.) 1 g IV vial: $39.50
2 g vial: $80.34
n.a. B q6–8h q12–18h q24h 18 first dose (60–250 mg) pHD Usual dose (1–2 g) then usual dose at usual intervals Rash, diarrhea, nausea, vomiting, elevated AST/ALT
Bacampicillin 0.4–0.8 g PO q12h 12.5–25 mg/kg PO q12h Data not available None B q12h q12h b b b Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Carbenicillin indanyl sodium 1–2 0.382-g tabs PO q6h 7.5–12.5 mg/kg PO q6h Data not available Increased B b b b b b Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Cefaclor Ceclor 0.25–0.5 PO q8h 20–40 mg/kg/d; divide q8h PO 250 mg capsule: $1.98
500 mg capsule: $3.89
Decreased B q8h q8h q8h 0.25–0.5 g b Allergic reactions, GI disturbance, arthritis, serum sickness
Cefadroxil Duricef 0.5–1 g PO
q12–24h
30 mg/kg/d; divide q12h PO 500 mg capsule: $3.72 Decreased B q12–24h 0.5 g q12–24h 0.5 g q36h 0.5–1 g b Allergic reactions, GI disturbance
Cefamandole 0.5–2 g IV q4–8h 50–150 mg/kg/d; divide q4–8h IV Data not available n.a. B q4–8h q8h 0.5–1 g q12h 0.5–1 g b Thrombophlebitis with IV infusion, allergic reactions, GI disturbance
Cefazolin Ancef, Kefzol 0.5–2 g IV q8h 25–100 mg/kg/d; divide q6–8h IV 500 mg IV vial: $1.30
1 g IV vial: $2.61
n.a. B q8h 0.5–1 g q8–12h 0.5–1 g q24h 0.25–0.5 g b Allergic reactions, GI disturbance, diarrhea
Cefdinir Omnicef 300 mg PO q12h 14 mg/kg/d PO qd divide q12–24h 300 mg capsule: $5.10
250 mg/5 mL (60 mL): $51.01
Minimal decrease B Usual 300 mg q24h 300 mg q24h Not defined Not defined Anaphylaxis, TEN, erythema multiforme, neutropenia
Cefditoren Spectracef 400 mg PO BID 400 mg PO BID 400 mg capsule: $14.74 Increased B 400 mg PO BID 200 mg PO BID 200 mg PO qd None b Anaphylaxis, leukopenia, neutropenia, thrombocytopenia
Cefepime Maxipime 0.5–2 g IV q12h 50 mg/kg IV q8h (n.a.) 1 g IV vial: $6.96
2 g IV vial: 11.86
n.a. B 0.5–2 g IV q12h q24h 0.25–0.5 g q24h Dose pHD 0.5–2 g q48h Nausea, diarrhea, vomiting, rash, phlebitis
Cefixime Suprax 0.4 g PO q24h 8 mg/kg/d; divide PO q24h 400 mg tablet: $20.16 Decreased B q24h 0.3 g q24h q48h None b Thrombophlebitis, allergic reactions, GI disturbance
Cefmetazole 2 g IV q6–12h b Data not available n.a. B q6–12h q16–24h q48h b b Thrombophlebitis, allergic reactions, GI disturbance
Cefonicid 0.5–2 g IV q24h b Data not available n.a. B q24h 4–15 mg/kg q24–48h 3–15 mg/kg q3–5 days None b Allergic reactions, GI disturbance, hypoprothrombinemia or hemorrhage
Cefoperazone 1–2 g IV q6–12h 25–100 mg/kg IV q12h (n.a.) Data not available n.a. B q6–12h q6–12h q6–12h Dose after HD b Thrombophlebitis, allergic reactions, GI disturbance
Cefotaxime Claforan 0.5–2 g IV q8–12h; 3 g q6h for CNS 50–200 mg/kg/d; divide IV q4–8h
(neonate: 0–7 d, 50 mg/kg q12h; 1–4 wk: 50 mg/kg q6–8h)
500 mg IV vial: $3.65
1 g IV vial: $4.36
2 g IV vial: $8.54
n.a. B q8–12h q12–24h 0.5 g q24–48h 0.5–2 g b Thrombophlebitis, allergic reactions, GI disturbance
Cefotetan Cefotan 1–2 g IV q12h 40–60 mg/kg/d; divide IV q12h (n.a.) 1 g IV vial: $17.58
2 g IV vial: $25.14
n.a. B q12h q24h q48h 25% dose nonHD days, 50% HD b Thrombophlebitis, allergic reactions, GI disturbance, hypoprothrombinemia, hemorrhage
Cefoxitin Mefoxin 1–2 g IV q6–8h 80–160 mg/kg/d; divide IV q4–8h 1 g IV vial: $11.22
2 g IV vial: $22.50
n.a. B q6–8h q12–24h 0.5–1 g q12–24h 1–2 g b Thrombophlebitis, allergic reactions, GI disturbance
Cefpodoxime Vantin 0.1–0.4 g PO q12h 5 mg/kg PO q12h 100 mg tablet: $6.73
200 mg tablet: $8.45
Increased B q12h q24h q24h Dose 3 × wk b Allergic reactions, GI disturbance
Cefprozil Cefzil 0.25–0.5 g PO q12–24h 15 mg/kg PO q12h 250 mg tablet: $4.37
500 mg tablet: $9.04
No effect B q12–24h 50% dose q12–24h 50% dose q12–24h b b Allergic reactions, GI disturbance
Ceftaroline Teflaro 600 mg IV q12h b 600 mg IV: $59.98 n.a. B q12h 300-400 mg q12h 200 mg q12h None b Allergic reactions, diarrhea, nausea, direct Coombs seroconversion
Ceftazidime Fortaz, Tazicef, Tazidime 1–2 g IV q8–12h 25–50 mg/kg IV q8h 1 g IV vial: $12.90 2 g IV vial: $18.59 n.a. B q8–12h q12–24h q24–48h 1 g load then 1 g pHD 0.5 g IV q24h or 250 mg/2 L dialysate Thrombophlebitis, allergic reactions, GI disturbance
Ceftibuten Cedax 400 mg PO q12h 3–6 mg/kg PO q8h 400 mg capsule: $19.19 Increased B for CrCl 30: 400 mg q12–24h PO 12; for CrCl 5: 29–200 mg PO qd for CrCl 30: 400 mg q24h
PO 12; for CrCl 5: 29–200 mg PO qd
100 mg q24h 400 mg pHD Seizures, anaphylaxis, TEN, Stevens–Johnson syndrome, erythema multiforme
Ceftizoxime Cefizox 1–3 g IV q6–8h 33–50 mg/kg IV q6–8h No data available n.a. B q6–8h 0.25–1 g q12h 0.5 g q24h Dose pHD 3 g q48h Thrombophlebitis, allergic reactions, GI disturbance
Ceftriaxone Rocephin 0.5–2 g IV q12–24h
(neonate: 0–7 d, 50 mg/kg q24h; 1–4 wk, 50–75 mg/kg q24h)
50–100 mg/kg/d; divide IV q12–24h 250 mg IV vial: $1.50
500 mg IV vial: $1.50
1 g IV vial: $2.64
2 g IV vial: $5.28
n.a. B q12–24h q12–24h q12–24h None b Thrombophlebitis, allergic reactions, GI disturbance, cholelithiasis
Cefuroxime Zinacef, Kefurox 0.75–1.5 g IV q8h 50–100 mg/kg/d divide IV q6–8h 750 mg IV vial: $3.67
1.5 g IV vial: $13.12
n.a. B q8h q8–12h 0.75 g q24h 0.75 g pHD 15 mg/kg pPD Thrombophlebitis, allergic reactions, GI disturbance
Cefuroxime axetil Ceftin 0.125–0.5 g PO q12h 0.125–0.25 g PO q12h 250 mg tablet: $4.39
500 mg tablet: $8.01
Decreased B q12h q12h 0.25 g q24h b b Allergic reactions, GI disturbance
Cephalexin Keflex, Biocef, Keftab 0.25–1 g PO q6h 25–100 mg/kg/d; divide PO q6h 250 mg capsule: $0.69
500 mg capsule: $1.37
750 mg capsule: $7.69
Unchanged B q6h q8–12h q24–48h 0.25–1 g b Allergic reactions, GI disturbance
Cephalothin 0.5–2 g IV q4–6h 80–160 mg/kg/d; divide IV q6h Data not available n.a. B q4–6h 1–1.5 g q6h 0.5 g q8h 0.5–2 g Add up to 6 mg/kg to dialysate Thrombophlebitis with IV infusion, allergic reactions, GI disturbance
Cephapirin 0.5–2 g IV q4–6h 40–80 mg/kg/d divide IV q6h Data not available n.a. B q4–6h q8h q12h 7.5–15 mg/kg pHD then q12h b Thrombophlebitis, allergic reactions, GI disturbance
Cephradine 0.25–1 g PO q6h
0.5–2 g IV q4–6h
25–100 mg/kg/d; divide PO q6–12h
50–100 mg/kg divide IV q6h
Data not available Decreased B q6h 0.5 g q6h 0.25 g q12h 0.25 g before HD, then 12, 36, and 48 h pHD 0.5 g q6h Allergic reactions, GI disturbance
Chloramphenicol Chloromycetin 0.25–0.75 g PO q6h 0.25–1 g IV q6h 50–100 mg/kg/d; divide q6h PO, IV PO: data not available 1 g IV vial: $17.00 Vitamins may increase absorption C Usual Usual Usual Dose pHD Usual Blood dyscrasias, gray baby syndrome, GI disturbance
Cinoxacin 0.25 g q6h, 0.5 g PO q12h N.R. Data not available Delayed absorption and lower mean peak serum levels C q6h 0.25 g q12–24h N.R. b b Nausea, vomiting, dizziness, headache, tremors, confusion
Ciprofloxacin Cipro 0.25–0.75 g PO q12h
0.2–0.4 g IV q12h
N.R. 250 mg tablet: $0.31
500 mg tablet: $0.36
750 mg tablet: $0.40
Decreased C q12h 0.25–0.5 g PO q12h, IV q12–24h 0.25–0.5 g PO q18h, IV q18–24h 0.25–0.5 g q24h, pHD on HD days 0.25–0.5 g q24h Nausea, vomiting, dizziness, headache, tremors, confusion
Clarithromycin Biaxin 0.25–0.5 g PO q12h 7.5 mg/kg q12h (n.a.) 250 mg tablet: $4.50
500 mg tablet: $4.52
Increased or unchanged B q12h q12–24h q24h b b GI disturbance, abnormal taste, headache
Clindamycin Cleocin 0.15–0.3 g PO q6h
0.3–0.9 g IV q6–8h
8–25 mg/kg/d; divide PO q6–8h
15–40 mg/kg/d; divide IV q6–8h
(newborn: 0–7 d, 15 mg/kg/d q6–8h; 1–4 wk, 15–20 mg/kg/d q6–8h)
150 mg capsule: $1.19
300 mg IV bag: $0.11
600 mg IV bag: $0.16
900 mg IV bag: $0.19
Unchanged B Usual Usual Usual Usual Usual Diarrhea, including pseudomembranous colitis, allergic reactions
Cloxacillin 0.5–1 g PO q6h 12.5–25 mg/kg PO q6h Data not available Decreased B q6h q6h q6h Usual Usual Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Colistin 5–15 mg/kg/d PO q8h
2.5–5 mg/kg/d IV q6–12h
5–15 mg/kg/d; divide PO q8h
2.5–5 mg/kg/d; divide IV q6–12h
150 mg IV vial: $57.00 Not significantly absorbed orally Not established q6–12h 2.5 mg/kg/d q12–24h 1.5 mg/kg q36h b b Nephrotoxicity, CNS side effects including confusion, coma, seizures
Dapsone 0.05–0.1 g PO q24h 1–2 mg/kg/d; divide q24h 25 mg tablet: $1.06
100 mg tablet: $1.30
No effect C q24h q24h q24h b b Rash, headache, GI irritation, infectious mono-like syndrome
Daptomycin Cubicin 4–6 mg/kg IV q24h Not defined 500 mg IV vial: $382.44 n.a. B 4–6 mg/kg q24h 4–6 mg/kg q48h 4–6 mg/kg q48h 4–6 mg/kg q48h. Administer after dialysis session on dialysis days 4–6 mg/kg q48h Arrhythmias, hypersensitivity rxn, anaphlyaxis, thrombocytopenia, myopathy
Dicloxacillin Dynapen 0.25–0.5 g PO q6h 3.125–6.25 mg/kg PO q6h 250 mg capsule: $0.66
500 mg capsule: $1.12
Decreased Not established q6h q6h q6h Usual Usual Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Doripenem Doribax 500 mg IV q8h b 250 mg IV vial: $25.30
500 mg IV vial: $45.99
n.a. B q8h 250 mg q8h 250 mg q12h b b Anaphylaxis, hypersensitivity, GI disturbance
Doxycycline Vibramycin 0.1 g PO, IV q12h 2.2 mg/kg PO, IV q12–24h 100 mg tablet: $4.06
100 mg IV vial: $18.02
Decreased with milk, antacids D q12h q12h q12h Usual Usual GI disturbance, photosensitivity reactions, hepatic toxicity, esophageal ulcers
Enoxacin 0.4 g PO, IV q12h N.R. Data not available Decreased C q12h 0.1–0.2 g q12h 0.1–0.2 g q12h b b Nausea, vomiting, dizziness, headache, tremors, confusion
Ertapenem Invanz 1 g IM/IV qd 30 mg/kg/d IM/IV BID 1 g vial: $84.89 n.a. B 1 g IM/IV qd CrCl 30: 500 mg qd CrCl 30: 500 mg qd 30% of daily dose should be supplemented pHD b Thrombocytopenia, increased LFTs, diarrhea, allergic reactions
Erythromycin base 0.25–0.5 g PO q6h 30–50 mg/kg/d; divide q6h Data not available Decreased B q6h q6h q6h Usual Usual GI disturbance; rare: allergic reactions, hepatic dysfunction, hearing loss
Erythromycin estolate 0.25–0.5 g PO q6h 3–50 mg/kg/d; divide q6h Data not available Decreased B Usual Usual Usual No change No change Cholestatic hepatitis, hearing loss or tinnitus, GI disturbance, hypersensitivity reactions
Erythromycin ethyl succinate EES, EryPed 0.4 g PO q8h 30–50 mg/kg/d divide PO q8h 400 mg tablet: $3.26 Increased B Usual Usual Usual Usual Usual GI disturbance; rare: allergic reactions, hepatic dysfunction
Erythromycin lactobionate 0.5–1 g IV q6h 15–20 mg/kg/d; divide IV q6h Data not available n.a. B Usual Usual Usual Usual Usual GI disturbance; rare: allergic reactions, hepatic dysfunction, hearing loss
Fidaxomicin Dificid 200 PO BID b 200 mg tablet: $177.46 None B Usual dose Usual dose Usual dose None None Nausea, vomiting, hypersensitivity reaction
Gatifloxacin 400 mg daily PO or IV b None Usual dose 400 mg ×1 then 50% q24h b b b Hyperglycemia, hypoglycemia, QT prolongation, tendon rupture
Gentamicinc Garamycin 3–5 mg/kg/d; divide IV q8h
4–8 mg/d IT
3–7.5 mg/kg/d; divide IV q8h
(newborn: 0–7 d, 2.5 mg/kg q12h; 1–4 wk, 7.5 mg/kg/d q8h)
100 mg/100 mL IV bag: $0.04 n.a. C q8–12h q12–48h >48 h 1–1.7 mg/kg pHD 1 mg/2 L dialysate removed Renal toxicity, vestibular and auditory toxicity, CNS reactions, neuromuscular blockade (rare)
Grepafloxacin 400 mg or 600 mg daily b Data not available No change b b b b b Phototoxicity, QT prolongation, tendon rupture
Imipenem Primaxin 0.5–1 g IV q6h 15–25 mg/kg IV q6h (n.a.)
(neonate: 0–7 d, 25 mg/kg q12h; 1–4 wk, 25 mg/kg q8h)
250 mg IV vial: $11.76
500 mg IV vial: $23.52
n.a. C q6h 0.5 g q8–12h 0.25–0.5 g q12h 0.25–0.5 pHD then q12h b Fever, rash, nausea, vomiting, diarrhea, seizures (rare)
Kanamycinc Kantrex 15 mg/kg/d; divide IV q8–12h 15 mg/kg/d; divide IV q8–12h
(newborn: 0–7 d, 15–20 mg/kg/d q12h; 1–4 wk, 15 mg/kg/d q8–12h)
1 g vial: $19.32 n.a. D q8–12h q12–48h >48 h 4–5 mg/kg pHD 3.75 mg/kg/d Cranial nerve VIII and renal damage
Levofloxacin Levaquin 0.25–0.75 g/d PO or IV N.R. 250 mg tablet: $16.81 500 mg tablet: $19.26 750 mg tablet: $36.07 250 mg IV bag: $0.15
500 mg IV bag: $0.12
Unchanged C Usual 0.25 g q24–48h 0.25 g q48h 0.25 g q48h 0.25 g q48h Diarrhea, nausea, headache
Lincomycin Lincocin 0.5 g PO q6–8h 0.6–1 g IV q8–12h 30–60 mg/kg/d; divide PO q6–8h 10–20 mg/kg/d; divide IV q6h PO: data not available 300 mg/mL (10 mL) vial: $9.48 Decreased Not established Usual Usual Usual b b Diarrhea, including pseudomembranous colitis, allergic reactions
Linezolid Zyvox 600 mg PO/IV q12h >12 y: 600 mg PO q12 0–11: 30 mg/kg PO/IV q8h 600 mg tablet: $140.37 600 mg IV bag: $144.40 Unchanged C Usual Usual Usual 200 mg b Leukopenia, pancytopenia,lactic acidosis, peripheral neuropathy, optic neuropathy
Lomefloxacin 0.4 g PO q24h N.R. Data not available Decrease C q24h 0.2 g q24h 0.2 g q24h 0.4 g load, then 0.2 g q24h b Nausea, vomiting, dizziness, headache, tremors, confusion, photosensitivity
Loracarbef 0.2–0.4 g PO q12–24h 15–30 mg/kg/d; q12h Data not available Decreased B q12–24h q24–48h q3–5d Dose pHD b Allergic reactions, GI disturbance
Meropenem Merrem 0.5–1 g IV q8h 20–40 mg/kg IV q8h 500 mg IV vial: $9.24 1 g IV vial: $18.48 n.a. B 0.5–1 g IV q8h q12h 0.25–0.5 q24h b b Nausea, diarrhea, vomiting, rash
Metronidazole Flagyl 0.25–0.5 g PO q6–12h 0.5 g IV q6–8h 15 mg/kg/d; divide TID (n.a.) 250 mg tablet: $0.32 500 mg tablet: $0.59 500 mg IV bag: $2.50 Unchanged B Usual Usual Usual Usual Usual Nausea, headache, metallic taste
Mezlocillin 3–4 g IV q4–6h 50 mg/kg IV q4–6h Data not available n.a. B q4–6h q8h q8h 2–3 g then 3–4 g q12h 3 g q12h Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Minocycline Minocin, Dynacin 0.1 g PO, IV q12h 2 mg/kg PO, IV q12h 100 mg capsule: $0.67 100 mg IV: $65.30 Decreased with milk, antacids D q12h q12h q12h Usual Usual GI disturbance, photosensitivity, hepatic toxicity, esophageal ulcers, vestibular toxicity; tooth discoloration
Moxifloxacin Avelox 400 mg PO/IV q24h N.R. 400 mg tablet: $27.52 400 mg IV: $46.08 Absorption delayed C Usual Usual Usual No change No change Anaphylaxis, phototoxicity,increased ICP, toxic psychosis
Nafcillin Nallpen, Unipen 0.5–2 g IV q4–6h 150 mg/kg/d; divide IV q4–6h (neonate: 0–7 d, 25 mg/kg q8–12h; 1–4 wk, 25 mg/kg q6–8h) 2 g IV bag: $24.95 Decreased (PO) B q4–6h q4–6h q4–6h Usual Usual Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting; platelet dysfunction with high doses
Neomycin Neo-tabs 50 mg/kg/d; divide PO q6h –‑ 500 mg tablet: $1.36 Neomycin not significantly absorbed PO Not established b b b b b Cranial nerve VIII and renal damage
Netilmicinc 4–6.5 mg/kg/d; divide IV q8–12h 3–7.5 mg/kg/d; divide IV q8–12h (newborn: 0–4 wk, 4–6.5 mg/kg/d q12h) Data not available n.a. D q8–12h q12–48h >48 h 2 mg/kg pHD b Renal toxicity, vestibular and auditory toxicity, CNS reactions, neuromuscular blockade (rare)
Nitrofurantoin Macrodantin, Macrobid 0.05–0.1 g PO q6h 5–7 mg/kg/d; divide q6h 100 mg capsule (Macrobid): $17.11 100 mg capsule (Macrodantin): $3.91 Increased B Usual Avoid Avoid Avoid Avoid Rash, nausea/vomiting, pancreatitis, anemia, leukopenia, LFT elevation, neuropathy, urine discoloration
Norfloxacin Noroxin 0.4 g PO q12h N.R. 400 mg tablet: $4.84 Decreased C q12h q24h q24h b b Nausea, vomiting, dizziness, headache, tremors, confusion
Ofloxacin Floxin 0.2–0.4 g PO, IV q12h N.R. 200 mg tablet: $4.78 400 mg tablet: $6.00 IV: data not available Decreased C q12h q24h 0.1–0.2 g q24h 0.2 g load; then 0.1 g q24h b Nausea, vomiting, dizziness, headache, tremors, confusion
Oxacillin Bactocil 0.5–1 g IV q4–6h 37.5–50 mg/kg IV q6h (neonate: 0–7 d, 25 mg/kg q8–12h; 1–4 wk, 25 mg/kg q6–8h) 1 g IV vial: $14.60 Decreased B q4–6h q4–6h q4–6h Usual Usual Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Penicillin V Pen–VeeK, Pen–V 0.25–0.5 g PO q6h 6.25–12.5 mg/kg PO q6h 250 mg tablet: $0.46 500 mg tablet: $0.74 Decreased B q6h q6h q6h 250 mg b Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Penicillin G benzathine Bicillin L-A 600 000–2 400 000 U IM ×1 600 000 U IM ×1 (neonate: 1–4 wk, 50 000 U/kg IM ×1) 600 000 units/mL (4 mL) IM injection: $37.51 n.a. B Usual Usual Usual Usual Usual Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Penicillin G 0.5–1 g PO q6h 1–4 million U IV q4–6h 25 000–90 000 U/kg/d; divide q4–8h PO 25 000–400 000 U/kg/d; divide IV q4–6h (neonate: 0–7 d, 50 000–150 000 U/kg/d q8–12h; 1–4 wk, 75 000–200 000 U/kg/d q6–8h) Data not available PO 2 million units/50 mL IV bag: $10.55 3 million units/50 mL IV bag: $10.95 Decreased B q4–6h q4–6h 25%–50% of standard dose q4–6h 500 000 U b Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Piperacillin 3–4 g IV q4–6h 50 mg/kg IV q4–6h (n.a.) Data not available n.a. B q4–6h q6–8h q8–12h 1 g pHD, then 2 g IV q8h b Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting; platelet dysfunction with high doses
Piperacillin–tazobactam Zosyn 3.375 g IV q6–8h 90–112.5 mg/kg IV q8h 3.375 g IV vial: $21.46 n.a. B q6–8h 2.25 g q6h 2.25 g q8h b b Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Polymyxin B Aerosporin, Neosporin 15 000–25 000 U/kg/d IV q12h 15 000–25 000 U/kg/d IV q12h 500 000 units vial: $12.00 n.a. Not established q12h q12h 2250–3750 U/kg/d; divide q12h b b Nephrotoxicity, flushing; CNS effects: confusion, seizures; allergic reactions
Procaine penicillin G Wycillin 0.6–1.2 million U IM q12h 25 000–50 000 U/kg IM q12–24h 600 000 units/mL (2 mL) IM injection: $16.92 n.a. B q12h q12h q12h b b Allergic reactions (rare: anaphylactic), diarrhea, nausea, vomiting
Quinupristin–dalfopristin Synercid 7.5 mg/kg IV q8h b 350 mg IV vial: $247.46 n.a. b Usual Usual Usual b b Pain at infusion site, thrombophlebitis, arthralgia, myalgia
Rifaximin Xifaxan 200 mg PO TID b 200 mg tablet: $16.04 550 mg tablet: $26.43 Unchanged C b b b b b Headache, constipation, vomiting
Sparfloxacin 0.4 g PO ×1 d then 0.2 g/d b No data available Unchanged C Usual 0.2 g q48h 0.2 g q48h b b Photosensitivity, diarrhea, nausea, headaches, cardiac arrhythmias in patients taking antiarrhythmic drugs
Spectinomycin 2 g IM qd b Data not available n.a. B q24h q24h q24h b b Pain at injection site, nausea, allergic reactions
Streptomycin 0.5–1 g IV or IM q12h 20–40 mg/kg/d; divide IV or IM q6–12h 1 g IM injection: $22.50 n.a. D q12h 7.5 mg/kg q24h 7.5 mg/kg q72–96h 0.5 g pHD b Cranial nerve VIII damage, paresthesias, rash, fever, renal toxicity, neuromuscular blockade, optic neuritis
Sulfadiazine Microsulfon 2–4 g/d; PO q4–8h 120–150 mg/kg/d; divide PO q4–6h 500 mg tablet: $4.28 Decreased C b b b b b Rash, photosensitivity, drug fever
Sulfamethoxazole 1 g PO q8–12h 50–60 mg/kg/d; divide PO q12h Data not available Decreased C b b b b b Rash, photosensitivity, drug fever
Sulfisoxazole 0.5–1 g PO q6h 25 mg/kg IV q6h 120–150 mg/kg/d; divide PO q4–6h Data not available Decreased C q6h q8–12h q12–24h b b Rash, photosensitivity, drug fever
Teichoplanin 0.2–0.4 g IV q24h 10 mg/kg IV q24h Data not available n.a. Not established q24h q48h q72h b b Ototoxicity
Telavancin Vibativ 10 mg IV q24h b 750 mg IV vial: $358.00 n.a. C q24h q48h b b b Nephrotoxicity, nausea, QT prolongation
Telithromycin Ketek 800 mg PO qd b 400 mg tablet: $17.27 Unchanged C Usual Usual 600 mg PO qd Dose pHD b