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.
Descriptions. Methylphenidate is used to treat attention deficit hyperactivity disorder (ADHD). It belongs to the group of medicines called central nervous system (CNS) stimulants. Methylphenidate is also used to treat narcolepsy.Narcolepsy is an uncontrollable desire for sleep or a sudden attack of deep sleep.escriptions. Methylphenidate is used to treat attention deficit hyperactivity disorder (ADHD). It belongs to the group of medicines called central nervous system (CNS) stimulants. Methylphenidate is also used to treat narcolepsy.