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        PREVACID
        Baseline         15 mg         30 mg
Parameter         Value         Day 1 Day 5        Day 1 Day 5
Mean 24-Hour pH         2.1         2.7+         4.0+        3.6*         4.9*
Mean Nighttime pH         1.9         2.4         3.0+        2.6         3.8*
% Time Gastric pH>3         18         33+         59+        51*         72*
% Time Gastric pH>4         12         22+         49+        41*         66*

NOTE: An intragastric pH of >4 reflects a reduction in gastric acid by 99%.
*£¨p<0.05£© versus baseline and lansoprazole 15 mg.
+£¨p<0.05£© versus baseline only.

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        PREVACID
Parameter         30 mg q.d.         15 mg b.i.d.         30 mg b.i.d.         30 mg t.i.d.
% Time Gastric pH>5         43         47         59+         77*
% Time Gastric pH>6         20         23         28         45*
+£¨p<0.05£© versus PREVACID 30 mg q.d.
*£¨p<0.05£© versus PREVACID 30 mg q.d., 15 mg b.i.d. and 30 mg b.i.d.

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Clarithromycin MIC (µg/mL)a         Interpretation
¡Ü0.25        Susceptible (S)
0.5-1.0        Intermediate (I)
¡Ý2.0        Resistant (R)
Amoxicillin MIC (µg/mL)b        Interpretation
¡Ü0.25        Susceptible (S)
a : These are tentative breakpoints for the agar dilution methodology and they should not be used to interpret results obtained using alternative methods.
b : There were not enough organisms with MICs >0.25 µg/mL to determine a resistance breakpoint.

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Microorganism        Antimicrobial Agent        MIC (µg/mL)a
H. pylori ATCC 43504        Clarithromycin        0.015-0.12 µg/mL
H. pylori ATCC 43504        Amoxicillin        0.015-0.12 µg/mL
a These are quality control ranges for the agar dilution methodology and they should not be used to control test results obtained using alternative methods.
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