http://www.medications.com/effect/view/22130 I started taking Prilosec OTC a month ago to treat GERD...just over a month ago. Very shortly after starting the medication, I noticed I was getting dull headaches and tension in my head that lasted throughout the day...not a migraine, but enough to be ann Mon, 19 Jan 2009 09:24:11 -0500 http://www.medications.com/effect/view/22130?item=16189 I started taking the Prilosec OTC for severe heartburn. My brother said take one a day and I won't be bothered anymore. First I took the 14 day treatment and stopped. Heartburn returned. So I started taking it once a day everyday. I started having co http://www.medications.com/effect/view/22130?item=16189