Duricef Dosage
Generic name: cefadroxil
Dosage form: powder, for suspension
Drug class: First generation cephalosporins
Medically reviewed by Drugs.com. Last updated on Apr 23, 2025.
DURICEF is acid-stable and may be administered orally without regard to meals. Administration with food may be helpful in diminishing potential gastrointestinal complaints occasionally associated with oral cephalosporin therapy.
Adults
Urinary Tract Infections: For uncomplicated lower urinary tract infections (i.e., cystitis) the usual dosage is 1 or 2 g per day in a single (q.d.) or divided doses (b.i.d.).
For all other urinary tract infections the usual dosage is 2 g per day in divided doses (b.i.d.).
Skin and Skin Structure Infections: For skin and skin structure infections the usual dosage is 1 g per day in single (q.d.) or divided doses (b.i.d.).
Pharyngitis and Tonsillitis: Treatment of group A beta-hemolytic streptococcal pharyngitis and tonsillitis—1 g per day in single (q.d.) or divided doses (b.i.d.) for 10 days.
Children
For urinary tract infections, the recommended daily dosage for children is 30 mg/kg/day in divided doses every 12 hours. For pharyngitis, tonsillitis, and impetigo, the recommended daily dosage for children is 30 mg/kg/day in a single dose or in equally divided doses every 12 hours. For other skin and skin structure infections, the recommended daily dosage is 30 mg/kg/day in equally divided doses every 12 hours. In the treatment of beta-hemolytic streptococcal infections, a therapeutic dosage of DURICEF should be administered for at least 10 days.
See chart for total daily dosage for children.
CHILD'S WEIGHT | |||
lbs kg | 250 mg/5 mL | 500 mg/5 mL | |
10 | 4.5 | ½ tsp | |
20 | 9.1 | 1 tsp | |
30 | 13.6 | 1½ tsp | |
40 | 18.2 | 2 tsp | 1 tsp |
50 | 22.7 | 2½ tsp | 1¼ tsp |
60 | 27.3 | 3 tsp | 1½ tsp |
70 & above |
31.8+ | — | 2 tsp |
Renal Impairment
In patients with renal impairment, the dosage of cefadroxil monohydrate should be adjusted according to creatinine clearance rates to prevent drug accumulation. The following schedule is suggested. In adults, the initial dose is 1000 mg of DURICEF and the maintenance dose (based on the creatinine clearance rate [mL/min/1.73 M2]) is 500 mg at the time intervals listed below.
Creatinine Clearances | Dosage Interval |
010 mL/min | 36 hours |
1025 mL/min | 24 hours |
2550 mL/min | 12 hours |
Patients with creatinine clearance rates over 50 mL/min may be treated as if they were patients having normal renal function.
Bottle Size | Reconstitution Directions |
100 mL |
Suspend in a total of 67 mL water. Method: Tap bottle lightly to loosen powder. Add 67 mL of water in two portions. Shake well after each addition. |
75 mL |
Suspend in a total of 51 mL water. Method: Tap bottle lightly to loosen powder. Add 51 mL of water in two portions. Shake well after each addition. |
50 mL |
Suspend in a total of 34 mL water. Method: Tap bottle lightly to loosen powder. Add 34 mL of water in two portions. Shake well after each addition. |
After reconstitution, store in refrigerator. Shake well before using. Keep container tightly closed. Discard unused portion after 14 days. |
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