Treatment of commonly occurring bacterial infections eg, upper respiratory tract infections (eg, ear, nose and throat infections, otitis media); lower respiratory tract infections (eg, acute exacerbations of chronic bronchitis, lobar and bronchopneumonia); gastrointestinal tract infections (eg, typhoid and paratyphoid fever); genitourinary tract infections (eg, cystitis, urethritis, pyelonephritis, bacteriuria in pregnancy, septic abortion, puerperal sepsis); other incfections including borreliosis (Lyme disease; Borrelia burgdorferi); skin and soft tissue infections; biliary tract infections; bone infections; pelvic infections; gonorrhea (nonpenicillinase-producing strains); septicemia; endocarditis; meningitis; peritonitis; dental abscess (as an adjunct to surgical management); Helicobacter pylori eradication in peptic (duodenal and gastric) ulcer disease.