You experience severe or persistent diarrhoea, as omeprazole active ingredient been associated with a small increase in infectious diarrhoea. Headaches should usually go away after the first week of taking omeprazole.
Possible side effects of Xeldrin include:
Xeldrin is used to treat diseases such as: Barrett's Esophagus, Duodenal Ulcer, Erosive Esophagitis, Gastritis/Duodenitis, GERD, Helicobacter Pylori Infection, Indigestion, Multiple Endocrine Adenomas, Stomach Ulcer, Systemic Mastocytosis, Zollinger-Ellison Syndrome.
For this drug to work well, it needs to be taken on a regular basis.