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.
Amphetamine is a medication used to treat certain health issues. It is harmful when abused. Amphetamines are central nervous system stimulants that speed up systems in the body and increase the levels of dopamine in the brain which is a natural neurotransmitter associated with pleasure, attention, and movement.mphetamine and amphetamine containing compounds are mainly used to treat attention deficit disorder (ADD) and attention deficit hyperactivity disorder (ADHD) for which the benefits outweigh the costs as long as the medications are used strictly for the prescribed therapeutic purposes.