Chlorpheniramine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. Chlorpheniramine is used to treat runny nose, sneezing, itching, and watery eyes caused by allergies, the common cold, or the flu.
The mean orbital velocity of Earth is about 29.783 kilometers per second. That's the speed the planet is moving through space in its orbit about the sun. Earth's speed varies a bit because its orbit is slightly eccentric, but that's why we say mean orbital velocity. One can calculate this value by knowing two facts:
Total earth speed through space is about: 516 miles/second (830 km/s); 1,860,000 miles/hour (2,990,000 km/h) While the Earth orbits around the Sun at a relative 66,700 miles per hour, the Sun is not a stationary object. It is generally accepted that the Earth, Sun, Milky Way and the Local Cluster all move through the Universe at 373 miles/second (600Km/s.) A widen perspective could include several other facts as well.