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.
Among the most concerning ingredients are the following, which you will find in various Blistex products: 1  Phenol. 2  One of Blistexâs several active ingredients, phenol is considered toxic to the central nervous system and the heart, and linked to coma and seizures. 3  Saccharin.