Just as it does with food, the body tries to chemically break down medicines as soon as they enter the body. Most drugs taken by mouth enter the stomach or small intestine and then are sent to the liver. The liver contains protein molecules called enzymes that chemically modify drugs and other non-food substances.
Pluto: The Farthest Planet (Usually) Pluto, the ninth planet in our solar system, was not discovered until 1930 and remains a very difficult world to observe because it's so far away. At an average distance of 2.7 billion miles from the Earth, Pluto is a dim speck of light in even the largest of our telescopes. It takes almost 249 years to make one swing around the Sun, in a long looping orbit that takes it above and below the path of the other planets.
Firstly, Earth is furthest from the Sun (aphelion, 152,097,701 km) and Neptune is in opposition (directly opposite the Sun in the sky so that the Earth is exactly between the Sun and Neptune) and nearest to the Sun (perihelion, 4,452,940,833 km).his is the closest possible. Secondly, Earth is at aphelion and Neptune is at aphelion but in conjunction-diametrically opposite the Earth on the other side of the Sun. In this case the separation will be 4,553,946,490 km + 152,097,701 km or 4,706,044,191 km. This is 0.0004974 of a light year, the furthest possible.