Anti-infective solution comprising a pyrido(3,2,1-ij)-benzoxadiazine compound

Antiinfectious composition comprises a pyrido[3,2,1-ij]benzoxadiazine derivative (I) or its salt and a solubilizer in a carrier. Antiinfectious composition comprises a pyrido[3,2,1-ij]benzoxadiazine derivative of formula (I), or its salt, and a solubilizer in a carrier. X : H, halo or OH; R 1>1-piperazinyl (optionally 4-substituted with Me), acetyl of 4-aminobenzyl; morpholino; 1-pyrrolidinyl (optionally 3-substituted with Cl, NH 2, aminomethyl, methylaminomethyl, ethylaminomethyl or OMe); 1-imidazolyl (optionally 4-substituted with Me); or 1-piperidinyl (optionally 4-substituted with OH or OMe); R 2>1-10C alkyl. [Image] ACTIVITY : Antibacterial; Virucide; Respiratory-Gen.; Endocrine-Gen.; Uropathic; Gastrointestinal-Gen.; Cardiovascular-Gen.; Dermatological; Muscular-Gen.; Auditory; Ophthalmological. An aqueous solution of marbofloxacin (15 g/100 ml) and gluconolactone (8.11 g/100 ml) was administered to pigs by intramulsular injection at a dose of 8 mg/kg. The lesion volume after 1 week was 9 cm 3>, compared with 32 cm 3> using an aqueous solution of marbofloxacin (10 g/100 ml) and gluconolactone (8 g/100 ml). MECHANISM OF ACTION : None given.