NCIt definition : A solid in the shape of a small sphere intended to be embedded securely in the body
and designed to release active and/or inert ingredient(s) at a controlled, prolonged
rate so as to reduce dosing frequency.;
Alternative definition : CDISC: A small sterile solid mass consisting of a highly purified drug intended for
implantation in the body which would allow at least a reduction in dosing frequency
as compared to that drug presented as a conventional dosage form. (NCI);
Currated CISMeF NLP mapping