Abstract: A solid pharmaceutical dosage form, e.g., a tablet, is disclosed which comprises (a) a sustained released matrix core containing i) an at least sparingly water soluble active pharmaceutical ingredient, ii) a hydrophilic polymer, iii) an optional hydrophobic polymer, iv) an optional wax component, and v) optional diluent; and (b) a semi-permeable functional film coating surrounding the core, wherein the dosage form is substantially resistant to dose dumping when administered in the presence of ethanol. A method for making the dosage form is also provided in which the dosage form is coated with a semi-permeable coating.