I received Hydrochlorothiazide instead of a pill for anti itch. I ended up in emergency for hypokalemia and a kidney and bladder infection. I still have headaches and every time I think about it it makes me want to cry. I had to get three IVs pumped into me and on bed rest for a few days. I also missed time at work. When they doctor prescribed me the drugs there were no drug interactions. However when the pharmancy made the error, there ended up being two drug interactions, one of the interaction was Hypokalemia.