| abstract |
The present invention relates to a new solution preparation containing prostanglandin E1 for the treatment of erectile dysfunction, which is prepared into a form of microemulsion preconcentrate. This preparation has a property, upon administration to a human body, of easily emulsifying or dispersing of itself and is of a system called a self-emulsifying drug delivery system (hereinafter to be referred to as 'SEDDS'), which is prepared by dispersing or dissolving a drug into a liquid mixture of oil, surfactant and cosurfactant. |