Dosage
Zitum ® is to be used by parenteral route. The dose is to be selected depending upon the severity, sensitivity and type of infection and the age, weight and renal function of the patient.
Adults: The adult dosage range for Ceftazidime is 1-6 g/day. For instance, 500mg given 12 or 8 hourly by IV or IM injection. In urinary tract infections and in many less serious infections, 500mg or 1g 12 hourly is usually adequate. In the majority of infections, 1g 8 hourly or 2g 12 hourly should be given. In very severe infections, especially in immunocompromised patients, including those with neutropenia, 2g 8 or 12 hourly should be administered.
Infants and children: The usual dosage range for children aged over two months is 30 to 100mg/kg/day, given in 2 or 3 divided doses. Dosage up to 150mg/kg/day (maximum 6g daily) in 3 divided doses may be given to infected immunocompromised or fibrocystic children or children with meningitis.
Neonates and children up to 2 months of age: Whilst clinical experience is limited, a dosage of 25 to 60mg/kg/day given in 2 divided doses has been proved to be effective. In the neonates the serum half life of Zitum ® can be 3 to 4 times than that in adults.
Dosage in cystic fibrosis: In fibrosystic adults with normal renal function who have pseudomonal lung infections, high dosage of 100 to 150mg kg per day in three divided doses should be used. In adults with normal renal function 9g/day has been used safely.
Dosage in peritoneal dialysis: Zitum ® may also be used in peritoneal dialysis and in continuous ambulatory peritoneal dialysis (CAPD). As well as using Zitum ® intravenously, it can be incorporated into the dialysis fluid (usually 125 to 250mg for 2L of dialysis fluid).
Administration
Zitum ® may be given intravenously (IV) or by deep intramuscular (IM) injection into a large muscle mass such as the upper outer quadrant of the gluteus maximus or lateral part of the thigh. For IM administration, Zitum ® should be reconstituted with WFI as directed in the table headed by 'Preparation of Solution'. Then it should be injected through following the 'Instructions for Reconstitution' given below. For IV administration Zitum ® should be reconstituted with WFI as directed and should be injected slowly into the vein over a period of 3 to 5 minutes.
Strength |
Route of administration |
WFI to be added (ml) |
25Omg |
IM |
1.0 |
25Omg |
IV |
2.5 |
5OOmg |
IM |
1.5 |
5OOmg |
IV |
5.0 |
1g |
IM |
3.0 |
1g |
IV |
10.0 |
Instruction for Reconstitution:
1. Inject WFI and shake well to dissolve. The vials may contain a vacuum to assist injection of WFI.
2. Carbon dioxide is released as the antibiotic dissolve, generating pressure within the vial. The solution will become clear within 1 to 2 minutes.
3. Invert the vial, insert needle into ii and withdraw contents of the vial in the usual manner.
4. The withdrawn solution may contain carbon dioxide bubble, which should be expelled from the syringe before administration.