According to the web site Doctors Guide – (http://www.pslgroup.com/dg/1DA2BA.htm) they state the following: The most common side effects reported in persons treated with Zeldox in clinical trials included headache, somnolence, nausea, constipation and dyspepsia. These side effects were generally of mild to moderate severity and rarely led to discontinuation of the drug.

Of course, I would still talk to your doctor about any changes in your medications.