Promin

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This article is about a sulfone drug. For the village in Mykolaiv Oblast, Ukraine, see Promin, Mykolaiv Oblast.
Promin
File:Promin Molecular Structure Skeletal.svg
File:Promin Molecular Structure Spacefill.png
Clinical data
Other namesSodium glucosulfone, Aceprosol, Promanide, Tasmin, Sulfona P
Identifiers
  • 2,3,4,5,6-pentahydroxy-1-[4-[4-[(2,3,4,5,6-pentahydroxy-1-sulfohexyl)amino]phenyl]sulfonylanilino]hexane-1-sulfonic acid
CAS Number
PubChem CID
ChemSpider
UNII
E number{{#property:P628}}
CompTox Dashboard (EPA)
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Chemical and physical data
FormulaC24H36N2O18S3
Molar mass736.73 g·mol−1
3D model (JSmol)
  • [Na+].[Na+].[O-]S(=O)(=O)[C@H](Nc1ccc(cc1)S(=O)(=O)c2ccc(N[C@@H](S([O-])(=O)=O)[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO)cc2)[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
  • InChI=1S/C24H36N2O18S3.2Na/c27-9-15(29)17(31)19(33)21(35)23(46(39,40)41)25-11-1-5-13(6-2-11)45(37,38)14-7-3-12(4-8-14)26-24(47(42,43)44)22(36)20(34)18(32)16(30)10-28;;/h1-8,15-36H,9-10H2,(H,39,40,41)(H,42,43,44);;/q;2*+1/p-2/t15-,16-,17-,18-,19+,20+,21-,22-,23+,24+;;/m1../s1 ☒N
  • Key:NLLGJEMIZSAJFN-XRAGNMTMSA-L ☒N
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File:プロトミン注射液 吉富製薬 (54875433042).jpg
YOSHITOMI PHARMACEUTICAL

Promin, or sodium glucosulfone is a sulfone drug that was investigated for the treatment of malaria,[1] tuberculosis[2] and leprosy.[3][4] It is broken down in the body to dapsone, which is the therapeutic form.[5]

History

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The first synthesis of Promin is sometimes credited to Edward Tillitson and Benjamin F. Tullar of Parke, Davis, & Co. pharmaceuticals in August 1937.[6][7] However, although Parke-Davis did in fact synthesize the compound, it seems certain that they were not the first; in cooperation with J. Wittmann, Emil Fromm synthesised various sulfone compounds in 1908, including both dapsone and some of its derivatives, such as promin. Fromm and Wittmann however were engaged on chemical rather than medical work, and no-one investigated the medical value of such compounds until some decades afterwards.[7] The medical evaluation of sulfones was inspired by the discovery of the unprecedented value of synthetic compounds such as sulfonamides in treating microbial diseases. Early investigations yielded disappointing results, but subsequently promin and dapsone proved valuable in treating mycobacterial diseases. They were the first treatments to show promise in controlling such infections.[8]

Initially, Promin appeared to be safer than dapsone, so it was further investigated at the Mayo Clinic as a treatment for tuberculosis in a guinea pig model.[9] Because it was already known that leprosy and tuberculosis were both caused by mycobacteria (Mycobacterium leprae and Mycobacterium tuberculosis, respectively), Guy Henry Faget of the National Leprosarium in Carville, Louisiana, requested information about the drug from Parke-Davis. They, in turn, informed him of the work being done on leprosy in rats by Edmund Cowdry at the Washington University School of Medicine. His successful results, published in 1941, convinced Faget to begin human studies, both with promin and sulfoxone sodium, a related compound from Abbott Laboratories. The initial trials were on six volunteers, and were then expanded and replicated in different locations. Despite severe side effects that caused the initial tests to be suspended temporarily, the drug was shown to be effective.[9][10] This breakthrough was reported worldwide, and led to a reduction in the stigma attached to leprosy, and consequent better treatment of patients, at the time still referred to as "inmates", and forbidden from using public transport.[11]

Pharmacology

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Promin is heat-stable and water-soluble, and can therefore be heat-sterilized.[12] It can be injected intravenously,[12] and is available in ampules.[13]

Beyond its solubility, however, promin was later found to have no real advantages over the simpler compound dapsone (which is administered in tablet form). Promin and other sulfones can also not be used as substitutes for dapsone when intolerance develops, as this is a general reaction to sulfones, and not specific to dapsone.[14]

Today, the drugs of choice for treating leprosy are dapsone, rifampicin and clofazimine.[15]

References

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