"Use as directed" can cause confusion for both patients and practitioners.
ISMP Medication Safety Alert! Acute Care Edition. August 25, 2016;21:1-3.
Reporting the results of a survey on "as directed" instructions for medications and summarizing cases of misunderstandings resulting from the practice, this newsletter article recommends that physicians should provide explicit directions regarding medication administration steps to patients to ensure medications are used safely and pharmacists are able to provide appropriate patient counseling if required.