- Hypersensitivity to nitroxoline or other components of the drug,
- hypersensitivity to quinoline drugs,
- cataract,
- severe renal failure (creatinine clearance below 20 ml / min),
- severe hepatic impairment,
- neuritis, polyneuritis,
- pregnancy and lactation,
- deficiency of glucose-6-phosphate dehydrogenase,
- lactose intolerance, fructose, lactase deficiency, sucrose / isomaltase, glucose-galactose malabsorption,
- Children under 3 years old (for this dosage form).