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.
Robitussin is a brand name and registered trademark for both over-the-counter (OTC) and prescription cough and cold medicines manufactured by Pfizer.Robitussin products are available in many countries worldwide, though formulations and regulatory standards differ between countries.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.