Abstract
The structure of the adamantane molecule, which coincides with the unit cell of diamond, is constructed. It is proved that the dimension of the adamantane molecule is nine. This is more than twice the dimension of the adamantane molecule previously considered. The higher dimension of adamantane molecules indicates the higher dimension of the molecules of substances containing adamantane molecules in their composition, in particular drugs based on adamantane. Examples of calculating the dimensions of known medicines are given. In this work, it is shown that the main part of adamantane itself, containing ten active carbon atoms, can be a means of impeding the formation of beta-amyloids that play the main role in various diseases of nerve cells.