Oral dosage
Avlosef ® may be given without regard to meal.
Adults:
Urinary tract infections: 500mg four times or 1g twice daily. In case of prostatitis of or epididymitis, prolonged intensive therapy is needed.
Respiratory tract, skin and soft tissue infections: 250mg or 500mg four times daily or 500mg or 1g twice daily.
Gastro-intestinal tract infections: 500mg three or four times daily.
Children: 25 to 50mg/kg/day, in two or four equally divided doses.
Otitis Media: 75 to 100mg/kg/day, in two or four divided doses.
In severe and chronic infections, larger doses may be required, upto a maximum of 4g daily in divided doses.
Parenteral dosage
Adults:
Intramuscular or intravenous: 500mg or 1g every 6 hours, upto 8g daily in severe infections.
Perioperative prophylaxis: In surgery: i.m or i.v 1g one half to one and one half hours prior to the start of surgery and 1g every 6 hours upto 24 hours. In cesarean section: 1g i.v as soon as the umbilical cord is clamped and 1g i.m or i.v 6 and 12 hours after the first dose.
Children: 1 year of age and above/over; i.m or i.v 12.5 to 25mg/kg body weight every 6 hours.
Upto 300mg/kg body weight daily has been in severely ill infants and children without apparent adverse effects.
Premature infants and infants upto 1 year of age: dosage has not been established.
Administration
Intramuscular: 500mg dissolve in 2ml water for injection BP and 1g dissolve in 4ml water for injection BP.
Intravenous: 500mg dissolve in 5ml water for injection BP and 1g dissolve in 10ml water for injection BP, 5% dextrose injection or Sodium chloride injection. The resulting solution should be administered over a 3-5 minutes period.
lntermittent i.v use : 1g dissolve in 10ml of suitable diluent.
Treatment should be continued for a minimum ol 48 1o 72 hours after the patient becomes asymptomatic. A minimum of 10 day's treatment recommended for infection caused by haemolyticstrains of Streptococci. Persistent infection may require treatment for several weeks. ln severe and chronic infection, larger doses may be required upto 1g 4 times a day.
Renal impairment dosage: Adult: Based on the creatinine clearance a loading dose of 750mg of Avlosef ® may be given followed by maintenance dose of 500m9 at the time interval listed below :
Creatinine clearance Ml/min/1.73m 2 |
Time interval |
>20ml/min |
6-12 hours |
15-19ml/min |
12-24 hours |
10-14ml/min |
24-40 hours |
5-9ml/min |
40-50 hours |
<5ml/min |
50-70 hours |
Further modification of the dosage schedule may be necessary in children.