Abstract: The present invention relates to injections for ocular tissues containing a conjugate covalently bonded a drug to PEG. When the drug-PEG conjugate is injected into the ocular tissues, the drug can be retained in the ocular tissues such as an iris, a ciliary body, a vitreous body, a retina and an optic nerve for a long period. Accordingly, the injections for ocular tissues of the present invention make it possible to treat or prevent diseases m various ocular tissues over a long period by a single administration. PEG can be any of straight-chain, stellate and branched. In the case of straight-chain PEG, since the drugs are generally bonded using hydroxyl groups at its both ends, a binding ratio of the drug to PEG is 1:1 or 2:1. Since stellate and branched PEGs have plural hydroxyl groups, plural covalent bond of drugs to PEG can be formed.

Abstract: An object of the present invention is to formulate prostaglandin derivatives which are hardly soluble in water and liable to be adsorbed to a resinous container and prostaglandin derivatives which are liable to decompose when dissolved in water in ophthalmic solutions. Solubility of the prostaglandin derivatives in water is improved and the adsorption thereof to the resinous container can be remarkably inhibited by adding a nonionic surfactant such as polysorbate 80 or polyoxyethylene hydrogenated castor oil 60 to the ophthalmic solutions. The decomposition of the prostaglandin derivatives can be remarkably inhibited by adding an antioxidant such as disodium ethylenediaminetetraacetate or dibutylhydroxytoluene.

Abstract: The present invention provides new substances which promote production and secretion of mucin in ophthalmic tissues. Therapeutic agents for keratoconjunctival diseases in the present invention comprise farnesylacetic acid or a salt thereof as an active ingredient. These therapeutic agents for the keratoconjunctival diseases can be applied to dry eye, keratitis, conjunctivitis, corneal erosion, corneal ulcer and the like.

Abstract: An object of the present invention is to prepare substances which are excellent in delivery and enable drugs to be retained in a body effectively over a long period and to construct a drug delivery system using the substances. When the delivering substance which is obtained by reacting polyalkylene glycol or a reactive derivative thereof, a phospholipid and a drug with each other to form covalent bonds is administered systemically or topically, the substance is retained at a target site in a body for a long period, thereby making it possible to sustain drug efficacy over a long period by a single administration.

Abstract: An ophthalmic composition particularly in the form of eye-drops suitable for the treatment of diseases of the eye and surrounding areas. The composition contains a cyclosporin and a surfactant selected from polyoxyethylene fatty acid esters, polyoxyethylene alkylphenyl ethers and polyoxyethylene alkyl ethers, or mixtures thereof.

Abstract: An object of the present invention is to provide an aqueous solution of lactoferrin which can be preserved for a long period of time. The aqueous preparation according to the present invention is an aqueous preparation which is characterized by containing a polyvalent inorganic or organic acid or a salt thereof whereby stability of lactoferrin is improved and is an aqueous preparation in which concentration of the polyvalent inorganic or organic acid or a salt thereof is 0.005% (w/v) or more. In the case of ophthalmic solutions, for example, the polyvalent inorganic or organic acid or a salt thereof is preferably 0.01-3.0% (w/v), particularly preferably 0.1-1.0% (w/v).

Abstract: An ophthalmic composition particularly in the form of eye-drops suitable for the treatment of diseases of the eye and surrounding areas. The composition contains a cyclosporin and a surfactant selected from polyoxyethylene fatty acid esters, polyoxyethylene alkylphenyl ethers and polyoxyethylene alkyl ethers, or mixtures thereof.

Abstract: The present invention relates to an aqueous ophthalmic solution containing apafant and additives wherein apafant is stabilized by lowering ionic strength to 0.05 or below, and a method of stabilizing apafant in the ophthalmic solution.

Abstract: An ophthalmic composition particularly in the form of eye-drops suitable for the treatment of diseases of the eye and surrounding areas. The composition contains a cyclosporin and a surfactant selected from polyoxyethylene fatty acid esters, polyoxyethylene alkylphenyl ethers and polyoxyethylene alkyl ethers, or mixtures thereof.

Abstract: This invention relates to novel aqueous ophthalmic compositions containing vitamin E or ester thereof as an active ingredient, sorbic acid or salts thereof as a preservative, and surfactant. The composition of this invention is useful for treatment of various eye diseases, especially for cataract.

Abstract: A carboxyvinyl polymer having Newtonian viscosity, ophthalmic preparations containing the polymer, a process for preparing the polymer, and a vehicle for ophthalmic preparations containing the polymer. By using the polymer in a vehicle, an ophthalmic preparation having a low viscosity and a desirable permeability of a drug can be obtained.