Dose of cephalexin for Urinary tract infection in prenancy

Causative agent: 
Most common: Escherichia coli, Proteus mirabilis and Klebsiella pneumoniae
Less common: Staphylococcus saprophyticus, enterococci,Gardnerella vaginalis and Ureaplasma ureolyticum

Treatment:

Duration:
A 7-10-days course of antibiotic treatment is usually sufficient to eradicate the infecting organisms. 


References:
1. American Family Physician, 2000.
http://www.aafp.org/afp/2000/0201/p713.html