... years and it worked great, but it was so expensive. So, I recently started taking 2-20mg over the counter pills a day instead of the 1-40mg tablet …my pharmacist said this should be the same thing. It isn't working! I have had acid reflux and heartburn worse than I've had in 2 years. Can the over the counter pills really be THAT different, or is it a coincidence that my symptoms have flared up at the same time I switched over? I haven't changed my diet or anything else in my lifestyle recently and I have been under no stress recently. Has anyone else shared this type of complaint?