Until two days ago, I had been taking Prilosec OTC, 40 mgs. daily. I'm now taking the generic Omeprazole capsules, prescription. I switched to the generic version because it's covered by my insurance and it's a lot cheaper. I was told both meds were the same. However, after taking the generic Omep. capsules, I got bad side effects. I've never had any side effects from the Prilosec OTC. Just wondering if anyone else has noticed a significant difference in the two.