This type of supernova is caused by a white dwarf. A white dwarf is the remnant of a sun-like star at the end of its life, a body of about 1 solar mass, mainly composed of carbon and oxygen. The matter is compressed into an earth-sized object with a diameter of between 11000 and 28000 km.
The main active ingredient in Robitussin cough medicine is dextromethorphan, or DXM. DXM is a non-narcotic cough suppressant indicated for cough caused by irritation of the bronchial passages and the common cold. BananaStock/BananaStock/Getty Images.
Methocarbamol is a muscle relaxant and active ingredient of Robaxin. It is FDA-approved for the treatment of muscle spasms and skeletal muscle conditions. How the drug works to prevent muscle spasms is not yet known, but it is similar in structure to guaifenesin (another muscle relaxant) and appears to be quite safe when used correctly.