Dihydroergotamine is used to treat migraine headaches and cluster headaches. It is not recommended for migraines that affect only one side of the brain (hemiplegic migraine) or the base of the brain /neck area (basilar migraine), or to prevent migraines from occurring.
Pop music is an abbreviation for popular music. In other words, the main difference between pop music and alternative or underground music is the kind of following it has: pop music is usually known by a lot of people and regularly appears on TV.
The abbreviated form pop for popular. as in pop music, dates from the late 1950s. Although terms pop and popular are in some cases used interchangeably, and their meaning partially overlap, the term pop is narrower.Pop is specific of something containing qualities of mass appeal, while popular refers to what has gained popularity, regardless of its style.he abbreviated form pop for popular. as in pop music, dates from the late 1950s. Although terms pop and popular are in some cases used interchangeably, and their meaning partially overlap, the term pop is narrower.