Why Glass containers for homoeo Medicine? Plastic containers are reactive and leach into the substances stored into them. Due to this property of plastics, the U.S. F.D.A. had classified plastics as “Indirect Additives” i.e., though they are not directly added to the substance stored in them, they definitely seep into the contained substances. When plastics is exposed to medicines, its content is bound to dissolve some of the numerous chemicals in the plastic and that in turn is bound to distort the structure and action of the active ingredients present in our medicines. There is no such problem with Glass container and hence recommended.