slow, steady

drip of
the steady drip of water from the tap

catch
There were buckets to catch the drips from the ceiling.

fall
Drips fell from the roof of the cave.

drip from
drips from the tap

intravenous (abbreviated to IV)
morphine, saline

fix up, set up
be attached to, be on
He is on a saline drip.

attach sb to, put sb on
take sb off
He was taken off his drip last night.