The label says “use only if instructed by a physician.” Is it all right to drink (or buy?)
OS-1 if not instructed to do so by a physician?
There are no particular restrictions against buying OS-1. However, the
desired effect may not be fully obtained if OS-1 is not used in the
Since there also may be an underlying disease requiring treatment, we recommend that OS 1 be used under the instructions and guidance of a physician.