To determine how much medicationis left in an inhaler, drop the canisterinto a glass of water.
To determine how much medicationis left in an inhaler, drop the canisterinto a glass of water. If it sinks to thebottom, it is full; if it floats, it is empty;if it drops partway down the glassand then stops, it has some medicationleft--but not much.
-- Mohammed M. Basha, MD
Gainesville, Fla