I understand the ds version is double strength but is it also slow release or not. As I understand ds version is taken twice a day where the normal version is suppose to be taken 2 to 3 times a day. The normal version is just so much cheaper than ds. It's a lot more economical to take 2 normal tabs twice a day compared to the ds version if it's just a matter of total dose with no slow release effects. I have Googled around and can't seem to find an answer. Appreciate any info. Cheers! !!