Bottle of Huxley's "Ner-Vigor,"' England, 1892-1943. Huxley's "Ner-Vigor" was sold as a strengthening tonic for the nerves and to improve digestion. Made by the Anglo-American Pharmaceutical Co Ltd, based in Croydon, the tonic was prescribed for clinical depression, neurasthenia, anaemia, rickets, and sciatica. It was suggested that a teaspoonful should be added to half a wine glass of water and drunk three times a day after meals. Like some other medical products of the period, it contains a very small measure of the highly dangerous poison strychnine. The makers of the tonic claimed that it received favourable reviews in the medical press.