Floating an asthma inhaler in water tells if it's empty.

For years we've heard that if an asthma inhaler floats it's empty.

In fact some patient handouts and websites still suggest putting the canisters in water to see if they float or sink.

Not a good idea...advise patients not to do it.

Practical advice for a better career, with unlimited access to CE

Pharmacy Technician's Letter includes:

  • 12 issues every year, with brief articles about new meds and hot topics
  • 120+ CE courses, including the popular CE-in-the-Letter
  • Helpful, in-depth Technician Tutorials
  • Access to the entire archive

Already a subscriber? Log in

Volume pricing available. Get a quote