According to Directive
2001/83/EC:
Medicinal product:
(a) Any substance or combination of substances presented as having properties
for treating or preventing disease in human beings; or
(b) Any substance or combination of substances which may be used in or
administered to human beings either with a view to restoring, correcting or
modifying physiological functions by exerting a pharmacological, immunological
or metabolic action, or to making a medical diagnosis.