I dont' know about this one.... I have used Beta 2 drugs for years and years now (Mostly Clen and ECA), and I take Benadryl EVERY NIGHT for sleep probs.... I have never seen a benefit of keeping Beta 2 receptors fresh longer..... Not saying it's not true, but I've never seen it from personal expierence..... Use Clen for 12 weeks? You gotta be fucking kidding me man.... Even back when we did Clen 2 days on, 2 days off, we never did that more then 6 weeks..... Even Ephedrine won't give the same results after 12 weeks of use, and Ephedrine is proven to not downgrade the Beta 2 receptor as hard as Clen does..... I still would use Clen 2 weeks on, 2 weeks off..... Whether if your using Benadryl or not, or T3, or Test.... Like it or not, Beta 2 receptors downgrade quick, kinda like opiate receptors.... I work in medical field with people that take Beta 2 drugs for breathing purposes..... If Benadryl made the Beta 2 drugs "That much more" effective, I'm sure the medical community would know it.....
rizz