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.
The Food and Drug Administration (FDA) regulates the shelf life of over-the-counter (OTC) drug products such as sunscreens, anti-perspirants, etc., as follows: Product âShelf Lifeâ If the shelf life is less than three years, then the expiration date of the product must be clearly indicated on the package.