Abstract: The present invention relates to a dual-body drug administration device which administers drugs and removes mucus from the paranasal sinus through the nostrils in order to prevent or treat a paranasal sinus disease and, more specifically, to a device in which two injectors having adapters coupled thereto are integrally fixed by a fixing holder, the adapters of the fixed injectors are simultaneously brought into contact with both the nostrils, and then negative pressure is generated in the nasal cavity to pull out mucus from the paranasal sinus or administer a drug to the paranasal sinus.

Abstract: The present invention relates to a liquid drug injection device for injecting a liquid drug into a nasal cavity and paranasal sinuses through a nostril and, more specifically, to a device for injecting a liquid drug into a nasal cavity and paranasal sinuses, so as to enhance the effect of cleaning surfaces of the nasal cavity and the paranasal sinuses and injecting the liquid drug, and to increase the effectiveness of preventing and treating nasal diseases.

Abstract: The present invention relates to a solid composition comprising an iodine agent and sodium chloride having improved water solubility and to an antiviral and antimicrobial composition for an eye, oral cavity, nasal cavity or inhalation containing an aqueous solution thereof, wherein the solid composition comprises an iodine agent and sodium chloride or a mixture of an iodine agent, sodium chloride and a flavoring agent and is excellent in not only storage stability but also water solubility as a dissolution rate thereof for water is 30 seconds or less.