Drug	Intravenous regimen	Cost*
Amikacin (Amikin)	1 g daily	$ 65.00
Aztreonam (Azactam)	1 g every 8 hours	49.00
	2 g every 8 hours	65.50
Ceftazidime (Fortaz)	1 g every 8 hours	44.00
	2 g every 8 hours	86.50
Ceftriaxone (Rocephin)†	2 g daily	72.50
Cefotaxime (Claforan)†	1 g every 8 hours	33.50
Ciprofloxacin (Cipro)	400 mg every 12 hours	57.50
Gentamicin	400 mg daily	5.00 (per 80 mg)
Imipenem-cilastatin (Primaxin)	500 mg every 6 hours	109.00
Levofloxacin (Levoquin)‡	500 mg daily	39.50
Piperacillin-tazobactam (Zosyn)	3.375 g every 6 hours	61.00
Ticarcillin-clavulanate (Timentin)	3.1 g every 6 hours	58.00
Tobramycin (Nebcin)	400 mg daily	7.00 (per 80-mg vial)
Trimethoprim-sulfamethoxazole (Bactrim)‡	10 mL (160 mg/800 mg) every 12 hours	32.00