Enteric coated tablet

Which material are use in enteric coated tablet & how much qty added into its?

Generally, Cellulose acetate/phthalate and Shellac (natural origin), and other synthetic polymers can be used for enteric-coated tablets during the coating process. The quantity should be standardized during the product development and optimization process so as meet the tablet-disintegration requirements of “Enteric coated” tablets as per pharmacopoeia.