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Doripenem 
DORIBAX™
Usual Diluents
NS,  D5W
Standard Dilutions   [Amount of drug]  [Infusion volume]  [Infusion rate]
[ 500 mg ] [ 100 ml ] [ 1 hour ]   (Total volume: 110 ml)
[ 250 mg ] [ 50 ml ]  [ 1 hour ]   (Total volume: 55 ml)


Rec
onstitute the 500 mg vial with 10 mL of sterile water or 0.9% NS.
Stability / Miscellaneous
DOSAGE AND ADMINISTRATION:  
500 mg every 8 hours by intravenous infusion administered over one hour for
patients ≥18 years of age.  

Renal Dosing
:
CrCl (mL/min)  Recommended Dose
>50 No dosage adjustment necessary
≥ 30 to ≤ 50  250 mg IV (over 1 hour) every 8 hours
>10 to < 30 250 mg IV (over 1 hour) every 12 hours
Hemodialysis DORIBAX™ is hemodialyzable; however, there is insufficient information to make
dose adjustment recommendations in patients on hemodialysis

PREPARATION: 
DORIBAX does not contain a bacteriostatic preservative. Aseptic technique must be followed in preparation of the infusion solution.
Preparation of 500 mg dose:  Constitute the vial with 10 mL of sterile water for injection or 0.9% sodium chloride injection (normal saline) and gently shake to form a suspension. The resultant concentration is 50 mg/mL. CAUTION: THE CONSTITUTED SUSPENSION IS NOT FOR DIRECT INJECTION. Withdraw the suspension using a syringe with a 21 gauge needle and add it to an infusion bag containing 100 mL of normal saline or 5% dextrose; gently shake until clear. The final infusion solution concentration is 4.5 mg/mL.

Preparation of 250 mg dose for patients with moderate or severe renal impairment:  Constitute the vial with 10 mL of sterile water for injection or 0.9% sodium chloride injection (normal saline) and gently shake to form a suspension. The resultant concentration is 50 mg/mL. CAUTION: THE CONSTITUTED SUSPENSION IS NOT FOR DIRECT INJECTION.  Withdraw the suspension using a syringe with a 21 gauge needle and add it to an infusion bag containing 100 mL of normal saline or 5% dextrose; gently shake until clear. Remove 55 mL of this solution from the bag and discard. Infuse the remaining solution, which contains 250 mg (4.5 mg/mL).

STABILITY
Storage of Constituted Solutions
Upon constitution with sterile water for injection or 0.9% sodium chloride (normal
saline) injection, DORIBAX suspension in the vial may be held for 1-hour prior to
transfer and dilution in the infusion bag. Following dilution of the suspension with normal saline or 5% dextrose, DORIBAX infusions stored at controlled room temperature or under refrigeration should be completed according to the times in the following table:

Infusion prepared in: Stability at room temp Stability if refrigerated
Normal saline 8 hours 24 hours
D5W 4 hours 24 hours


SourceOrtho-McNeil Pharmaceutical, Inc. (Manufactured by:Shionogi & Co. Ltd).  Doripenem (DORIBAX™) [package insert]. Raritan, NJ 08869; 2007.

 


 

 

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