An immediate release profile defines an instant drug release, dissolution or uptake. Typical dosage forms are ODTs (oral desintegrating tablets) or sachets / stick packs.
There are several drug release profiles which can be charcterized by dissolution curves:
- zero order release
In an immediate release profile, the drug is not retarded nor released in a controlled manner. The entire drug dose is released at once (immediately) and available for uptake. The antagonist of immediate release is a retarded or extended release.
A release profile is defiend by the drug formulation. See pellet technologies.