Isaac Swainson

Isaac Swainson (1746–1812) was famous for his botanical garden, which was largely funded from the profits of a herbal remedy for venereal disease.

A biography has been recently produced [2] Swainson moved to London where he served as assistant to a Dr. Mercier in Frith Street, Soho, where he settled.

This was one of many cures for venereal diseases based on plants rather than mercury, which is toxic.

[3] In addition to curing venereal diseases, including "the pox" and the "French disease", it was claimed to cure leprosy, gout, scrophula, dropsy, small pox, consumption, tape worms, cancer, scurvy, and diarrhea[4] Swainson also studied the conventional medicine of the era and gained an MD in 1785.

[3] Swainson, who was less noted for botany, is honoured by the genus name Swainsona, which is now known as the emblem of South Australia.

Isaac Swainson promoting his 'Velnos syrup', facing an onslaught of rival practitioners advocating mercury. Wellcome V0010912