Karsten made me aware of a few gems for GNUmed in daily use. See the attached screenshot. When connected to a drug database such as German Gelbe Liste GNUmed will know the ATC code for a drug. That makes it possible to search for infos in other databases. That way GNUmed is able to know the defined daily dose (DDD) as seen in the screenshot.
Another gem is in the following screenshot. GNUmed will now display the patient's allergies directly in the prescription dialog.
The last one gives a detailed overview over the lab plugin.