PHARYNX / NECK - Tonsillitis/Pharyngitis (Haemophilus influenzae)
Azithromycin (Zithromax^®) Pregnancy: B; Lactation: Unk Tabs: 250 mg and Z-Pak Oral Susp: 100 mg/5 mL, 200 mg/5 mL	Children ≥6 months: 10 mg/kg/day (max 500 mg) PO daily × 1 day, then 5 mg/kg/day (max 250 mg) PO daily 4 days 100 mg/5 mL 10 kg (22 lb) = 1 tsp (5 mL) × 1 day, then ½ tsp (2.5 mL) daily for days 2-5. 200 mg/5 mL 20 kg (44 lb) = 1 tsp (5 mL) × 1 day, then ½ tsp (2.5 mL) daily for days 2-5. 30 kg (66 lb) = 1.5 tsp × 1 day, then ¾ tsp daily for days 2-5. Adult: Dispense one Z-Pak.	Food: Oral suspension should be taken 1 hour before or 2 hours after food. Tablets may be taken without regard to food. Important side effects: Nausea, diarrhea, elevated LFTs.
Cefuroxime axetil (Ceftin^®) Pregnancy: B; Lactation: Unsafe Tabs: 125 mg, 250 mg, 500 mg Oral Susp: 125 mg/5 mL, 250 mg/5 mL	Children >3 months to 12 years: 30 mg/kg/day (max 1,000 mg/day) in divided doses twice daily for 10 days. 125 mg/5 mL @ 30 mg/kg/day 8 kg (18 lb) = 1 tsp (5 mL) Q12H 12.5 kg (27 lb) = 1½ tsp (7.5 mL) Q12H 17 kg (37 lb) = 2 tsp (10 mL) Q12H 25 kg (55 lb) = 3 tsp (15 mL) Q12H 33 kg (73 lb) = Use adult dose. Children ≥13 years or Adult: 250-500 mg PO twice daily for 10 days.	Food: Take suspension with food. Tablets may be taken without regard to food. Important side effects: Nausea, vomiting, diarrhea. Reduce dose in renal disease (CrCl <30 mL/min).
Trimethoprim/Sulfamethoxazole* (Bactrim^®, Septra^®)	Children >2 months: 8-10 mg/kg/day TMP component (max 320 mg/day) in divided doses twice daily for 10-14 days. 8-10 mg/kg/day @ 40 mg/200 mg/5 mL 10 kg (22 lb) = 1 tsp (5 mL) Q12H 20 kg (44 lb) = 2 tsp (10 mL) or 1 SS Tab Q12H 30 kg (66 lb) = 3 tsp (15 mL) or 1½ SS Tab Q12H 40 kg (88 lb) = 4 tsp (20 mL) or 2 SS Tabs or 1 DS Tab Q12H Adult: 1 DS Tab PO twice daily for 10-14 days.	Food: May take without regard to food. Encourage fluids. Important side effects: Photosensitivity, rash. Reduce dose in renal disease (CrCl <30 mL/min).