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Generated: January 22, 2018

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Title: Synergistic combination of a substance with gastric acid secretion inhibiting effect and an acid degradable antibiotic
Abstract:A synergistic pharmaceutical combination or composition is disclosed for the treatment of gastritis and peptic ulcer containing a therapeutic amount of a histamine H.sub.2 receptor blocking agent, which increases intragastric pH, and an acid degradable antibacterial compound. In particular, the combination is directed to the treatment of infections by Helicobacter pylori by raising the bioavailability of acid degradable antibacterial compounds.
Inventor(s): Eek; Arne T. (Trosa, SE), Sjostrand; Sven E. (Sodertalje, SE)
Assignee: Astra Aktiebolag (Sodertalje, SE)
Filing Date:May 16, 1995
Application Number:08/442,382
Claims:1. A pharmaceutical composition for the treatment of gastritis and peptic ulcer, comprising a therapeutically effective amount of a histamine-H.sub.2 receptor blocking compound which increases intragastric pH and a therapeutically effective amount of an acid degradable antibacterial compound.

2. The composition according to claim 1 wherein the acid degradable antibacterial compound is a weak base antibiotic.

3. The composition according to claim 1 wherein the acid degradable antibacterial compound is a penicillin or a macrolide.

4. The composition according to claim 3 wherein the penicillin is benzylpenicillin and the macrolide is an erythromycin or a clarithromycin.

5. An oral pharmaceutical composition for the treatment of gastritis and peptic ulcer caused by Helicobacter pylori infections comprising as active ingredients,

(a) a therapeutically affective amount of a histamine-H.sub.2 blocker which is a compound with inhibiting effect on the gastric acid secretion which effect increases the intragastric pH; and

(b) a therapeutically affective amount of an acid degradable antibacterial compound.

6. The composition according to claim 5 wherein the acid degradable antibacterial compound is selected from the group consisting of a penicillin and a macrolide.

7. The composition according to claim 5 wherein the acid degradable antibacterial compound is a benzyl penicillin.

8. The composition according to claim 5 wherein the acid degradable antibacterial compound is selected from the group consisting of an erythromycin and a clarithromycin.

9. A synergistic pharmaceutical combination comprising from about 1 to 200 mg histamine-H.sub.2 blocker and from about 250 mg to 10 g of an acid degradable antibacterial compound for the treatment of gastritis and peptic ulcer.

10. A synergistic pharmaceutical combination of a therapeutically acceptable amount of a histamine H.sub.2 blocker and a therapeutically acceptable amount of an acid degradable antibacterial compound selected from the group consisting of an erythromycin, a clarithromycin and a penicillin for the oral treatment of gastritis and peptic ulcer.

11. A method for treatment of gastritis and peptic ulcer caused by Helicobacter pylori comprising orally first administering to a patient suffering therefrom a pharmaceutical composition comprising a therapeutically effective amount of a histamine-H.sub.2 blocker which is an inhibitor of the gastric acid secretion, and pharmaceutically acceptable carrier; and thereafter and concomitantly administering a therapeutically effective amount of at least one acid degradable antibacterial compound.

12. The method according to claim 11 wherein the acid degradable antibacterial compound is a penicillin or a macrolide.

13. The method according to claim 12, wherein the macrolide is selected from the group consisting of an erythromycin and clarithromycin.
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