Drug is any substance used in the diagnosis or treatment of diseases affecting humans or animals,

Drug is any substance used in the diagnosis or treatment of diseases affecting humans or animals, or which are useful for mitigation or prevention. Medicine often works to increase or decrease the function of the body, it does not create new jobs. And officially is each property (in Latin: pharmaceuticum) legally licensed to use after making sure that it is free from any physical or psychological damage to the person addict him.