This section is from the book "Botanic Drugs Their Materia Medica, Pharmacology and Therapeutics", by Thomas S. Blair. Also available from Amazon: Botanic Drugs, Their Materia Medica, Pharmacology and Therapeutics.
Common Oat. Advocated as a remedy in nervous exhaustion first by the Homeopaths and then by the Eclectics, and used in material doses of an alcoholic tr. or fl. made from the unripe grain while "in the milk," or from the whole plant before the grain is ripe. The dose is given as 1/2 to 2 fluidrachms, and it is advocated by many physicians. It has wholly failed in my hands, having no material effect beyond what one would expect from the alcohol content; but I know physicians who esteem it highly. Recently Alfalfa has been exploited as a potent tonic and with even less scientific support. They are mentioned here because of their exploitation as ingredients in proprietary specialties.