Warburg's tincture was a pharmaceutical drug, now obsolete. It was invented in 1834 by Dr. Carl Warburg. Warburg's tincture was well known in the Victorian era as a medicine for fevers, especially tropical fevers, including malaria. It was considered, by some, to be superior to quinine. Warburg's Tincture was a secret, proprietary remedy. The formula was not published until 1875. Later, it was included in the first edition of Martindale: The Extra Pharmacopoeia. Warburg's Tincture included an array of ingredients, including quinine. Synonyms List of alternative names by which Warburg's Tincture was known or referred to: 'Warburg Tincture' 'The Warburg Tincture' 'Warburg's Fever Tincture' 'Warburg's Fever Tincture and Tonic Medicine' 'Warburg Fever Tincture and Tonic Medicine' 'Warburg's Vegetable Fever Tincture' 'Dr Warburg's Vegetable Fever Drops' 'Warburg's Vegetable Fever Drops' 'Dr Warburg's Tincture' 'Dr Warburg's Fever Tincture' 'Warburg Drops' 'Warburg's Drops' 'Warburg's Fever Drops' 'Dr Warburg's Fever Drops' 'Dr Warburg's Drops' 'Tinctura Warburgi' 'Tinctura Warburgii' 'Tinctura antifebrilis Warburgi' 'Tinctura antifebrilis Warburgii' 'Tinctura Antiperiodica' 'Antiperiodica Tincture' 'Warburg' (informal) Appearance and format As its name implies, Warburg's Tincture was originally available only in liquid form. It was deep brown to golden yellow in colour; its taste was bitter and not very palatable. It was sold in small bottles of unique design, containing about one ounce. The label affixed to each bottle bore the registered trademark, which depicted an image of the bottle accompanied by a facsimile of Carl Warburg's signature. By 1888 the drug was available in tablet form. History Warburg's Tincture was invented by Dr Carl Warburg in 1834, in British Guiana (now Guyana). It was introduced into Europe in 1839. Warburg's Tincture received medical trials in British Guiana in the 1830s, and then elsewhere around the world in the 1840s and 1850s. In 1846, Warburg's Tincture was extensively trialled in Austria and, the following year, it was adopted as an official medicine by the Austrian Empire, by imperial order. Warburg's Tincture was sold as a secret, proprietary medicine for over forty years, and was marketed and manufactured by Carl Warburg for many decades. He wanted the British Government to procure the formula of Warburg's Tincture from him, but such an arrangement never came to fruition. Nevertheless, the British Government was a significant client, procuring Warburg's Tincture for military forces serving overseas in India and Ceylon (now Sri Lanka); in Africa, in Gold Coast (now Ghana), Gambia and Sierra Leone; in the