Rare side effects of Prilosec occur in less than 1 percent of people taking the drug. Because these side effects are so uncommon, it can be difficult to tell whether they are actually caused by Prilosec or by factors unrelated to the medication.
It is possible that you may experience some or none of the Prilosec side effects listed in this article. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have side effects from a medicine that you have never tried. Therefore, make sure to let your healthcare provider know if you develop any side effects while taking Prilosec. Also, let your healthcare provider know if you develop something that "just does not seem right." While it may not be a side effect of Prilosec, your healthcare provider will be able to diagnose and treat the problem.