In 2003, the FDA approved generic gabapentin, and it's now made by several drug companies. An extended-release form of gabapentin is available under the brand name Horizant. In 2004, the drug maker Pfizer settled charges for marketing Neurontin for unapproved uses, and agreed to pay $430 million.
Although most diatoms are autotrophic, some heterotrophic or symbiotic species can be found in particular habitats. The living matter of each diatom is enclosed in a shell of silica that it secretes. These shells are marked by minute pores or depressions that allow the living organism access to its environment.iatom (dÄªËÉtÅmË, âtÅmË) [ key ], unicellular organism of the kingdom Protista, characterized by a silica shell of often intricate and beautiful sculpturing. Most diatoms exist singly, although some join to form colonies.
Kingdom Protista are very small, and the smallest of the  Eukaryotes. They are either multicellular, unicellular, or  colonial, and are not plants, animals, or fungi.2 people found this useful. Edit.ome can be autotrophic and some can be hetrotrophic. Protista can be autotrophic or heterotrophic. An autotroph is an organism that makes it â¦ s own food. A heterotroph is an organism that relies on other resources for food, just in case you didn't know.