rickets is a nutritional disorder that can develop if you do not get enough vitamin d calcium or phosphate rickets leads to poor functioning of a bone s growth plate growing edge softened and weakened bones stunted growth and in severe cases skeletal deformities
Hence, a 20-year period of the patent usually gives manufacturers a chance to recoup the cost of developing a new drug. When a drug patent expires, any pharmaceutical company can manufacture and sell the drug. A drug, which is produced and distributed without patent protection is called a generic drug.
Generic penetration is high in the U.S. and their use spreads quickly: within six months of a patent expiring on a drug, generics typically account for 80 percent of the market. Generics now account for 28 percent of pharmaceutical spending and 84 percent of drugs dispensed in the U.S., which is high by OECD standards.ut if Americans take more pharmaceuticals, they also pay more for them. Prices in the U.S. for brand-name patented drugs are 50 to 60 percent higher than in France and twice as high as in the United Kingdom or Australia.