drip feed

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Administration of blood, plasma, saline, or sugar solutions, usually intravenously, a drop at a time.
• noun The device or tubes by which such a substance is administered.
• noun The substance administered.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the administration of a solution (blood or saline or plasma etc.) one drop at a time