What is the best way to administer clen. I have read pyramid but then read taperin down after steady dosage what is most effective way? I also have 1400 clen pills and have no clue of the dosage of each pill. they came in 50 pill square bottle and are white with an R across the front. They costed me 12.50 per bottle of 50. Thank you if you can help. I plan on doing a 12 day on 12 day off routine. During the 12 off days will use Xenadrene...