Set of action liberacao delayed for one unit of the active ingredient and dosage of active ingredient unit.

摘要

A device for effecting the delayed release of an active ingredient comprises a container and, within, a dispersible unit of ingredient, a removable closure and a electrical control circuit for removal of said closure at a designated time to release the active ingredient. Several assemblies are combined to control the administration of veterinary medicaments to ruminant animals as a specific application of the invention.