Doripenem

Doripenem is a new member of the carbapenem class of beta-lactam antibiotics with broad-spectrum coverage of Gram-positive, Gram-negative and anaerobic pathogens.Target: AntibacterialDoripenem is an ultra-broad-spectrum injectable antibiotic. It is a beta-lactam and belongs to the subgroup of carbapenems. It was launched by Shionogi Co. of Japan under the brand name Finibax in 2005 and is being marketed outside Japan by Johnson & Johnson. It is particularly active against Pseudomonas aeruginosa. It is recommended that those allergic to doripenem or to any type of beta-lactam antibiotics such as cephalosporin or other Carbapenems not receive doripenem.Doripenem appears as crystalline powder anywhere from a white to somewhat yellowish colour.Doripenem is moderately soluble in water, slightly soluble in methanol, and virtually insoluble in ethanol. Doripenem is also solution in N,N-dimethylformamide. Doripenem's chemical configuration has 6 asymmetrical carbon atoms (6 stereocentres) and is most commonly supplied as one pure isomer. In terms of doripenem for injection, the crystallized powered drug can form a monohydrate when mixed with water. However, Doripenem has not been proven to possess polymorphism.

References:
[1]. Anderson DL. Doripenem. Drugs Today (Barc). 2006 Jun;42(6):399-404.
[2]. Jones RN, et al. Doripenem (S-4661), a novel carbapenem: comparative activity against contemporary pathogens including bactericidal action and preliminary in vitro methods evaluations. J Antimicrob Chemother. 2004 Jul;54(1):144-54. Epub 2004 Jun 9.