This historical paradox, where a synthetic pharmaceutical product benefited for decades from the fame of a natural source, despite having a completely different composition, is a fascinating chapter in the history of marketing.

The birth of the global Sedlitz brand

In the 18th and 19th centuries, the name of the small village of Sedlec (Sedlitz) near Most became a worldwide synonym for health and cleanliness due to the fame of the most fashionable of European spa towns, Teplitz in Bohemia. While this region was home to unique natural springs, such as Zaječice Bitter Water, a product began to be sold in pharmacies around the world that imitated and exploited the famous name: Sedlec Powders.

Sedlec's pills vs. Sedlec's water: A chronicle of scientific deception The story of this phenomenon is not only the history of pharmacy, but also a testimony to how the name of a North Bohemian village became a victim of its own success on the global market.

1. Discovery and scientific fame (1724–1828)

Discovery (1724): In 1724, Professor Friedrich Hoffmann was the first to scientifically describe the "bitter laxative salt" in Sedlec (in the text as Sedlitz in Bohemia) and compared its composition to the then famous waters in Epsom in England.

Reuss' scientific proof (1828):

Dr. von Reuss confirmed in his 1828 paper that the water from the Zaječice "Main Spring" (Hauptbrunnen) is the richest in solid mineral substances among all the mineral waters known at that time in the world. Unique composition: Reuss' analysis showed a dominant presence of magnesium sulfate (Bittersalz), magnesium nitrate and potassium sulfate.

2. Savory's patent and the birth of the "counterfeit" (1815)

Savory's Patent: In 1815, London pharmacist Thomas Field Savory patented "Seidlitz Powders." The False Promise: Savory claimed that after "endless labor and expense," he had created a powder that possessed all the properties of genuine Sedlec Water, even though his product did not contain a grain of magnesium sulfate.
Chemical substitute: While the basis of real water was bitter salt, the powders were made from a mixture of Rochelle salt (potassium-sodium tartrate), baking soda, and tartaric acid.

3. Legal battles and "quackery" (1823–1824)

Monthly Gazette of Health: Dr. Richard Reece, in his journal in 1823 and 1824, sharply attacked Savory's patent, calling it a "paltry nostrum".
Trial: Savory sued other pharmacists (Moore and Davidson) for patent infringement. The defense argued that Savory's powders were just ordinary "soda powders" and had nothing to do with the medicinal water from Bohemia.
Ethical dimension: The Gazette of Health sighed at the time that in England "law and justice are often in direct opposition" when pharmacists got away with selling an imitation under a famous name.

4. Global marketing chaos

Geographic myths: Your collection of packaging shows that manufacturers were often unaware of the origin of springs. Benham & Johnson and Cook stated the spring was in Germany, while Hall & Ruckel already correctly referred to Bohemia.
Standardization of the Fallacy: The pills eventually became so common that their production was governed by official pharmacopoeias (the British Pharmacopoeia) in both the US and Canada.
French cartoon: The popularity was such that in 1870, cartoonist Edmond Lavrate joked about the laxative effect of Sedlitz water compared to gendarmes – while a gendarme “arrests” (stops), Sedlitz “releases”.

5. Conclusion for the exhibition:

The truth prevails: Zaječice bitter water was drunk for its profound healing effects on the blood and digestion, without weakening the body. In contrast, the "Sedlceků powders" offered only an effective effervescence to amuse the patient and mask the taste of salt. In the museum archives, the scientific honesty of the Lobkowicz and Reuss families stands side by side against the industrial marketing of the 19th century.

The Sedlec phenomenon in London 1841

Dr. Johnson's book proves that in the mid-19th century, the name of North Bohemian Sedlec (Sedlitz) was better known in England and, by extension, throughout the Anglo-Saxon world than any other spa town in Germany or Central Europe.

Marketing "kidnapping" of the Sedlitz brand

The author of the document, Dr. James Johnson, states with a certain amount of irony that there is probably no one in England who has not at some time bought a box of “Genuine Sedlitz Powders.” In the literature and everyday life of that time, it was indeed a tradition (with exaggeration) that every Englishman took these powders several times a week to maintain his health.

However, the document reveals the shocking reality of the pharmaceutical market at the time: Misuse of the name: Pharmacists sold powders under the name "Sedlecké" as naturally as if a miraculous spring in Bohemia produced salt, sometimes acidic and sometimes alkaline, depending on the chemist's wishes.

Empty factory: While the whole world was drinking millions of doses of these powders, there was no salt factory in Sedlec itself in 1841. The mother of the spring administrator confirmed that salt production there had been stopped 33 years earlier (around 1808) because the springs in neighboring Zaječice were much more abundant and stronger.

Chemical Deception: Dr. Johnson confirms that the “true powders” that filled pharmacy shelves from London to the US contained not a grain of real water. They were merely a mixture of Rochelle salt and tartrates, intended to mimic the effervescent effect but not the healing power of the original.

Truth from the depths: Saidschitz (Zaječická)

The book highlights that while Sedlec was a famous name, the real scientific "giant" was the water from Zaječice (Saidschitz), which was analyzed at the time by the famous professor Berzelius. The document contains a precise table of composition, dominated by magnesium sulfate (bitter salt) in an amount that could not be matched by any other spring in the world.

World legacy

The influence of these sources on pharmacy was so massive that there is now a museum in the U.S. dedicated solely to this phenomenon. The 1841 document is a direct testament to a time when our regional wealth became synonymous with modern medicine, even though it was often passed off as mere chemical imitations.