Nitrofurantoin (Macrodantin, Furadantin, Macrobid) is a drug available in three forms prescribed for the treatment or prevention of urinary tract infections (UTIs). Side effects, warnings and precautions, drug interactions, and patient information should be reviewed prior to taking any medication.
In this group the mineral is held together by the attraction between silica tetrahedra and other positive ions. Olivine and Garnet are examples of minerals within the independent tetrahedra group. Single chain silicates contain silica tetrahedra that are linked up in a chain by sharing two oxygen atoms. The most common single chain silicate is pyroxene. Double chain silicates form by sharing either two or three oxygen.
In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons) is a polyhedron composed of four triangular faces, three of which meet at each corner or vertex. It has six edges and four vertices. The tetrahedron is the simplest of all the ordinary convex polyhedra and the only one that has fewer than 5 faces. The tetrahedron is the three-dimensional case of the more general concept of a Euclidean simplex.