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.
Because this medicine contains codeine, it is usually only prescribed when a patient has a painful and persistent cough, and/or one that interferes with the patient's sleep cycle. Each 5 mL of Robitussin DAC contains 10 mg of codeine, 100 mg of guaifenesin, and 30 mg of pseudoephedrine.Robitussin AC is Robitussin DAC without the pseudoephedrine. The taste mimics cherries but is said to have an unpleasant after-taste.obitussin is manufactured on Darbytown Road in Richmond, Virginia, at a site once owned by the drug's developer, AH Robins; its generic versions are manufactured by Qualitest.