helicobacter pylori infection
"I hope this is helpful for those that are taking this medication. I am on day 6 now and I'm feeling better. But the first 3 days my stomach was burning. Make sure you take  a probiotic  2 hours before or after taking this medication. The reason for the stomach burn is that the good bacteria is being destroyed by the METRONIZOLE? so the probiotic replaces the good bacteria that has been lost. Also I take 3 pepto bismol  chewable tablets 1 hour before I take the medication - it really helps out so much. I take this medication twice a day and I take 6 peptobismol in total all day good luck."