title: [The market of synonymous preparations in Denmark 1985-1990. A comparison of prices and quantities on the market].
abstract: The development of the market for synonymous drugs is investigated on the basis of groups of synonymous drugs in oral dosage forms where the difference between the price of the original preparation and the synonymous preparation(s) is at least 10%. The number of synonymous preparations has increased from 124 distributed among 76 groups in 1985 to 210 distributed amon 102 groups in 1990. In 1990, the total sale of synonymous groups constituted 31% of the total drug turnover. The cheap preparations constituted 47% of the sale in the synonymous groups. In 1985, the distributions were 27% and 44%, respectively. In 1990, the cheap preparations constituted 56% of the synonymous groups for preparations on the Danish market for the entire period form 1985 to 1990. Measured quantitatively (in defined daily dose), the consumption of the cheap preparations is greater than that indicated by the sale, 68% and 53%, respectively for the 15 largest synonymous groups in 1990. Consumption of the cheap preparations is high (75%) in group A (alimentary tract and metabolism) and considerably less (33%) in group R (respiratory system). Greater consumption of cheap preparations is observed within the synonymous groups with the greatest sale. The price level of the original preparations was only altered in a few cases after the synonymous preparations were marketed.
authors.affiliation: Laegemiddelafdelingen, Sundhedsstyrelsen, København.
authors.forename: A
authors.initials: A
authors.lastname: Nissen
mesh_terms: D003718:Denmark; D016527:Drug Costs; D004363:Drug Utilization / Q000191:economics; D016568:Drugs, Generic / Q000191:economics / Q000600:supply & distribution
chemical_list: D016568:Drugs, Generic
vernacular_title: Synonympraeparatmarkedet i Danmark 1985-1990. En sammenligning af prisniveauer og markedsandele.