1 Aussies are known for their excellent herding ability, intelligence, and high energy â and theyâre also one of the larger dogs on this list. 2  Average lifespan: 15 years. 3  Shih Tzu. 4  These âlionsâ were sweethearts of the Chinese Ming Dynasty, and today they live long lives as companion animals throughout the world.
Methylamine is used to produce a variety of important chemical products: pharmaceuticals; pesticides; fuel additives; explosives; solvents and cleaning agents; photographic precessing chemicals; and chemicals for the tanning of leather and dye processes.
Like the amphetamines, it is a centrally active stimulant used in the treatment of ADHD and narcolepsy. Methylphenidate is a derivative of amphetamine and has a similar activity to the amphetamines contained in Adderall. However, its profile of activity is slightly different from the amphetamines.