What is a "dropperful"?
Medications for children are frequently ordered by the "dropperful".
There are several problems with these orders. First there
is too much room for misinterpretation of what might constitute
a dropperful. One individual might consider it to be a dropper
filled to the upper calibration mark. Others might consider
it to be, literally, a full dropper and yet others might consider
it acceptable to use a household dropper or a dropper supplied
for another product. Likewise, another problem is variation
in the measurement scales on droppers supplied with different
We recommend that consumers make sure that they understand
the directions and keep the proper dropper with the product.
Only use the dropper that has been supplied with the product.
Institute for Safe Medication Practices