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Claims for Patent: 5,856,348

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Claims for Patent: 5,856,348

Title: Method for treatment of trematodes with pharmaceutical compositions of tizoxanide and nitazoxanide
Abstract:Methods for treatment of a parasitic infection of a trematode selected from the group consisting of Schistosoma such as Schistosoma mansoni, Schistosoma haematobium, Schistosoma mekongi, Schistosoma japonicum, and Schistosoma intercalatum, Fasciola such as Fasciola hepatica and Fasciola gigantica, Fasciolopsis buski, Dicrocoelium dendriticun, Heterophyes heterophyes, and Metagonimus yokogawa, the methods comprising administration of a pharmaceutical composition containing as active agent at least one compound selected the group consisting of a compound of formula I: ##STR1## and a compound of formula II: ##STR2##
Inventor(s): Rossignol; Jean-Francois (Clearwater, FL)
Assignee: Romark Laboratories, L.C. (Tampa, FL)
Application Number:08/887,810
Patent Claims: 1. A method for treating a parasitic infection of a trematode selected from the group consisting of Schistosoma Fasciola, Fasciolopsis, Dicrocoelium, Heterophyes, and Metagonimus, the method comprising administration of a pharmaceutical composition containing as active agent at least one compound selected the group consisting of a compound of formula I: ##STR5## and a compound of formula II: ##STR6##

2. A method for treating a parasitic infection of a trematode selected from the group consisting of Schistosoma mansoni, Schistosoma haematobium, Schistosoma mekongi, Schistosoma japonicum, Schistosoma intercalatum, Fasciola hepatica, Fasciola gigantica, Fasciolopsis biski, Dicrocoelium dendriticum, Heterophyes heterophyes, and Metagonimus yokogawa, the method comprising administration of a pharmaceutical composition containing as active agent at least one compound selected the group consisting of a compound of formula I: ##STR7## and a compound of formula II: ##STR8##

3. A method as in claim 2, wherein said active agent is in the form of particles with a mean particle size of between 10 and 200 .mu.m.

4. A method as in claim 3, wherein said active agent is in the form of particles with a mean particle size of between 20 and 50 .mu.m.

5. A method as in claim 3, wherein less than 10% of the said solid particles have a particle size larger than 100 .mu.m.

6. A method as in claim 2, wherein said pharmaceutical composition contains at least one pharmaceutically acceptable acid.

7. A method as in claim 6, wherein said pharmaceutically acceptable acid is selected from the group consisting of citric acid, glutamic acid, succinic acid, ethanesulfonic acid, acetic acid, tartric acid, ascorbic acid, methanesulfonic acid, fumaric acid, adipic acid, malic acid and mixtures thereof.

8. A method as in claim 6, wherein the ratio of the weight of pharmaceutically acceptable acid/the weight of said active solid particles is between 0.01 and 0.5.

9. A method as in claim 2, which contains as active agent a mixture of solid particles of compounds of formula I and of formula II, the weight content of compound of formula II with respect to the weight of compounds of formula I and of formula II of said mixture is between 0.5 and 20%.

10. A method as in claim 2, wherein said particles of active agent include a granulating agent selected from the group consisting of polyvinylpyrrolidone, water, alcohol, sucrose hydroxyl cellulose and mixture thereof.

11. A method as in claim 2, wherein said trematode is Schistosoma mansoni.

12. A method as in claim 2, wherein said trematode is Schistosoma haematobium.

13. A method as in claim 2, wherein said trematode is Fasciola hepatica.

14. A method as in claim 2, wherein said trematode is Schistosma mekongi.

15. A method as in claim 2, wherein said trematode is Schistosoma japonicum.

16. A method as in claim 2, wherein said trematode is Schistosoma intercalatum.

17. A method as in claim 2, wherein said trematode is Fasciola gigantica.

18. A method as in claim 2, wherein said trematode is Fasciolopsis buski.

19. A method as in claim 2, wherein said trematode is Dicrocoelium dendriticum.

20. A method as in claim 2, wherein said trematode is Heterophyes heterophyes.

21. A method as in claim 2, wherein said trematode is Metagonimus yokogawa.

22. A method as in claim 2, wherein said active agent is a compound of formula I.

23. A method as in claim 2, wherein said active agent is a compound of formula II.

24. A method as in claim 2, wherein said mammal is human and wherein said active agent is administered in an amount of from 500-2000 mg daily.

25. A method as in claim 24, wherein said active agent is administered in an amount of from 1000-1500 mg daily.
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