Yeah, the 800mg, I had some left over from a back injury a couple years ago. They may have actually been expired but they worked great at the end of the day, I slept like a log too
I just used the last one on my last trip and replaced them with the OTC 200mg, I'm glad to know 2 of them equals 800mg because I was planning on taking 4....lol
Just to be clear, 2 x 200mg still equals 400mg. I think what people were trying to communicate above is that 400mg is an adequate dose for most people...I.e. that it would achieve the same effect as an 800mg tablet. 4x 200mg is still 800mg....
Be careful taking doses that high without a prescription. Here and there its probably not too big of a deal, but worsening side effects are associated with higher doses...like risk for GI upset and even bleeding from the stomach.