Egyptian women in a sorrowful gesture of mourning. Mourning is, in the simplest sense, grief over someone's death. The word is also used to describe a cultural complex of behaviours in which the bereaved participate or are expected to participate. Customs vary between cultures and evolve over time, though many core behaviors remain constant.
The major difference between a brand-name pharmaceutical and its generic counterpart is neither chemistry nor quality, but whether the drug is still under patent protection by the company that initially developed it. When a company develops a new drug, it typically receives a patent that lasts 20 years.
A generic drug may be sold under its generic name or under a brand name (a branded generic drug) but not under the brand name used by the original patent-holder. Not all off-patent drugs have generic versions.rugs often have several names. When a drug is first discovered, it is given a chemical name, which describes the atomic or molecular structure of the drug. The chemical name is thus usually too complex and cumbersome for general use.