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.
According to the product website, this over-the-counter oral medication is cherry-flavored, offered in 100 or 250 mL bottles, and used to relieve coughs caused by colds and bronchitis. In addition to the two active ingredients, Robitussin DM also contains many inactive ingredients.