Described herein are solid, pharmaceutical compositions, dosage forms and methods of making and using the same, wherein the solid compositions comprise at least one high viscosity agent. The solid, high viscosity agent-comprising pharmaceutical compositions, when comprised of an opioid drug, can reduce the potential for abuse of such drug. The solid dosage forms are characterized by having a significantly reduced extractability of an opioid drug comprised therein upon contact of the dosage form with a solvent such as a typical household solvent. The solid dosage forms, following contact with a household solvent, such as an aqueous or alcoholic solvent, generate a high viscosity solution, thereby discouraging abuse of the resulting formulation via intravenous (IV) injection.
