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Claims for Patent: 5,859,021

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Claims for Patent: 5,859,021

Title: Antiviral combinations
Abstract:Combinations comprising a compound of formula (1) ##STR1## or a pharmaceutically acceptable derivative thereof and an inhibitor of HIV replication, pharmacetical formulations thereof and their use in the treatment of HIV infections.
Inventor(s): Cameron; Janet Mary (Greenford, GB), Cammack; Nicholas (Greenford, GB)
Assignee: Glaxo Group Limited (Greenford, GB)
Application Number:08/605,610
Patent Claims: 1. A combination of anti-HIV compounds which comprises a mixture of first and second compounds wherein said first compound is (2R,cis)-4-amino-1-(2-hydroxy-methyl-1,3-oxathiolan-5-yl)-1 H-pyrimidin-2-one or a pharmaceutically acceptable salt, ester or salt of said ester of said first compound and said second compound is 3'-azido-3'-deoxythymidine or a pharmaceutically acceptable salt, ester or salt of said ester of said second compound with the proviso that said first and second compounds of said combination are present in a ratio wherein the ratio of said first compound to said second compound is from about 1:2 to about 1:1 by weight.

2. The combination of claim 1 which further comprises a pharmaceutically acceptable carrier for said first and second compounds.

3. The combination of claim 1 wherein said first compound is (2R,cis)-4-amino-1-(2-hydroxymethyl-1,3-oxythiolan-5-yl)-1H-pyrimidin-2-on e and said second compound is 3'-azido-3'-deoxythymidine.

4. A method for the treatment of a mammal, including man, suffering from or susceptible to infection by HIV which comprises administering a combination of anti-HIV drugs wherein said combination includes first and second compounds; said first compound being (2Rcis)-4-amino-1-(2-hydroxymethyl-1,3-oxathiolan-5-yl)-1 H-pyrimidin-2-one or a pharmaceutically acceptable salt, ester or salt of said ester of said first compound and said second compound being 3'-azido-3'-deoxythymidine or a pharmaceutically acceptable salt, ester or salt of said ester of said second compound wherein the first and second compounds are administered in a ratio of said first compound to said second compound which is from about 1:2 to about 1:1.

5. The method of claim 4 wherein said first and second compounds are administered sequentially.

6. The method of claim 4 wherein said first and second compounds are administered simultaneously.

7. The method of claim 4 wherein said first compound is (2R,cis-4-amino-1-(2-hydroxymethyl-1,3-oxythiolan-5-yl)-1H-pyrimidin-2-one and said second compound is 3'-azido-3'-deoxythymidine.

8. The combination of claim 2 which is in the form of a dosage unit.

9. The combination of claim 3 which further comprises a pharmaceutically acceptable carrier for said first and second compounds.

10. The combination of claim 9 which is in the form of a dosage unit.
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