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.
Codeine is most often combined with other medications and then marketed under certain brand names such as Robitussin AC which contains codeine. There are many branded products on the market that include a combination of codeine and another drug such as Phenylephrine, Pyrilamine, Guaifenesin or Chlorpheniramine.