500 mg PO once, then 250 mg once daily for 4 days. 2 g extended release suspension PO once. 500 mg IV as single dose for at least 2 days; follow withInfection of pharynx, cervix, urethra, or rectum: Ceftriaxone 250 mg IM once plus azithromycin 1 g PO once (preferred) or alternatively doxycycline...