Marketing classifications often do not correspond to taxonomic ones. The "Ambersweet" cultivar is classified and sold as an orange, but does not descend from the same common ancestor as sweet oranges; it has grapefruit, orange, and mandarin ancestry. Fruits are often sold as mandarin, tangerine , or satsuma (which may be synonyms  ). Fruit sold under these names include many which are, like Sunbursts and Murcotts , hybrids with grapefruit ancestry.    The diversity of fruits called limes is remarkable; some, like the Spanish lime and Wild lime , are not even citrus fruit.
Long-term use of sedative-hypnotics for insomnia lacks an evidence base and has traditionally been discouraged for reasons that include concerns about such potential adverse drug effects as cognitive impairment ( anterograde amnesia ), daytime sedation, motor incoordination, and increased risk of motor vehicle accidents and falls. In addition, the effectiveness and safety of long-term use of these agents remain to be determined. More research is needed to evaluate the long-term effects of treatment and the most appropriate management strategy for elderly persons with chronic insomnia.