Capital and Coast said it could not provide up-to-date figures on missing medical supplies, but 792 items of loan equipment worth $70,600 wasn't returned last year.
Waitemata said morphine, ephedrine, fentanyl and lorazepam were among pharmaceuticals unaccounted for.
Rotorua-based Lakes said no equipment went missing during the period, but it recorded one event of "misuse of a prescription-only pharmaceutical in an acute area".
Auckland has dramatically improved its performance in recent years. In 2010, nearly $300,000 worth of equipment went missing. This year, that has fallen to just $3700.
Allied Health director for community and long-term conditions Anna McRae said a new equipment loan system was introduced in 2012.
A further $3000 or so is being was saved each month because it no longer had to hire equipment externally, she said.
"We found equipment wasn't being logged. A lot of the clinicians were too busy." Now, equipment had to be logged before it was loaned out.