Pharmaceutical compositions comprising at least one active pharmaceutical ingredient or a pharmaceutically acceptable salt thereof, at least one hydrophilic plastomer, at least one hydrophilic elastomer, and at least one deliquescent plasticizer, wherein the pharmaceutical compositions provide extended release of the API and have abuse deterrent properties. Methods for preparing the pharmaceutical compositions in which the components of the composition are humidified such that the deliquescent plasticizer deliquesces, thereby plasticizing the hydrophilic polymers.
