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.
No loyalty. Big pharma companies also say they only have a limited time in which to make profits. Patents are generally awarded for 20 years, but 10-12 of those are typically spent developing the drug at a cost of about $1.5bn-$2.5bn.n the UK, for example, there was widespread anger when the industry regulator predicted energy companies' profit margins would grow from 4% to 8% this year. Last year, five pharmaceutical companies made a profit margin of 20% or more-Pfizer, Hoffmann-La Roche, AbbVie, GlaxoSmithKline (GSK) and Eli Lilly.