Should i be tested for hypomagnesemia?i took prilosec for over a year and i heard it can cause this with prolonged qt interval. my legs feel sore also

Yes: If having muscle aches, it sometimes can be a sign of imbalance such as potassium& magnesium but not necessarily related to prilosec. A comprehensive metabolic panel(CMP) lab test is sufficient with adding a magnesium level. a prolonged qt interval is an abnormality on egg caused by many things. if someone has a low magnesium it can prolong the qt. prilosec can do this but less likely.