Some side effects of generic Prilosec medication include depression, agitation, aggression, hallucinations, or confusion, symptoms of an inflammation of the pancreas, such as nausea, fever or chills, extreme pain in the upper abdomen, a rapid heartbeat, signs of liver damage, such as yellowing in the whites of the eyes or skin, dark urine, or upper abdominal pain, signs of an allergic reaction, including an unexplained rash, hives, itching, and unexplained swelling. Rare side effects of cheap Prilosec online occur in less than 1% of people taking the drug. Because these side effects are so uncommon, it can be difficult to tell whether they are actually caused by this drug or by unrelated factors. Some of these rare side effects include a dry mouth, weight gain, muscle cramps, joint pain, insomnia, drowsiness, vertigo, hair loss, dry skin, blurred vision, tinnitus, taste changes, dry eyes, urinary tract infections (UTIs) and anemia. Any side effects, whether listed here or not, should be reported to a local doctor when you buy Prilosec.