NCIt definition : A suspension intended for injection that is designed to release active and/or inert
ingredient(s) at a controlled, prolonged rate so as to reduce dosing frequency.;
Alternative definition : CDISC: A sterile preparation intended for parenteral use which has been formulated
in a manner to allow at least a reduction in dosing frequency as compared to that
drug presented as a conventional dosage form (e.g., as a solution or a prompt drug-releasing,
conventional solid dosage form). (NCI);