Copolymerization by gamma irradiation of 2-hydroxyethyl methacrylate w
ith ethylene glycol dimethacrylate in the presence of hydrocortisone a
s model drug gave a molecular imprinted polymer (MIP). The hydrocortis
one was removed from the matrix with chloroform and incorporated again
from methanol solution. Release data show that 96% of the incorporate
d drug is retained after 30 days storage in a methanol/water (3:1 v/v)
mixture. In comparison with hydrocortisone, only a small quantity of
testosterone is absorbed by the matrix.