I had been taking a beige colored oblong pill but after the change, the pill was white and round. I assumed it's the same thing, but after a couple of weeks, I wondered why my symptoms returned. It dawned on me that maybe it was that the new pill just didn't work as well for me. Luckily, I found another pharmacy (Walmart) which carried the oblong pills. I began taking those, and in about a week, I returned to myself, mostly symptom free. Unfortunately, with my last prescription, Walmart also gave me the round pills which of course I didn't realize until I was home. I began with the round pills (thinking I might as well try them again). I'm back to increased symptoms and scared. QUESTION: Is this a real thing? Does a manufacturer's formula differ from another's formula even though it's for the same generic medicine? I'm not sure what to do about it. Thanks in advance for any advice