Suggest alternate drugs for Spironolactone and Eplerenone. to be working for him as well as it used to. I have heard that the side effect of this drug can cause symptons similar to Dimensha. (which he has now) He now has added a bottle of beer before going to bed ...
In molecules, elements are not merely mixed together, but are joined by chemical bonds. Chemical bonds in minerals are of four types: covalent, ionic, metallic, or Van der Waals, with covalent and ionic bonds most common. Two or more of these bond types can and do coexist in most minerals. Covalent bonds are very strong bonds formed when atoms share electrons with neighboring atoms. Sulfur, and both of carbon's natural forms, graphite and diamond, are covalently-bonded minerals. So is quartz, which contains only silicon and oxygen.
A less often mentioned type of bonding is metallic bonding. In this type of bonding, each atom in a metal donates one or more electrons to a sea of electrons that reside between many metal atoms. In this sea, each electron is free (by virtue of its wave nature) to be associated with great many atoms at once. single bond between two atoms corresponds to the sharing of one pair of electrons. The electron density of these two bonding electrons is concentrated in the region between the two atoms, which is the defining quality of a sigma bond.