Delivery of solid drug compositions

A method of parenterally administering a drug to a patient for immediate dispersal of the drug once administered by obtaining an anhydrous, solid drug composition consisting essentially of the drug and up to 50%, by weight, of a pharmaceutically acceptable carrier, wherein the drug and the carrier are selected and compounded such that the drug is dispersed from the composition upon contact with parenteral fluids and is distributed within the patient's bloodstream according to a blood level profile of the drug that is comparable to a blood level profile of the drug when administered in a liquid formulation, and introducing the solid drug composition into parenteral fluids of the patient.