As we all know within the bodybuilding community Clenbuterol is the highly touted beta-2 agonist with pretty impressive fat burning effects. However, there is a downside to this incredible fat-burning
effect. Clenbuterol does its job so well binding to the beta-2 receptor(That�s involved in both the regulation of body temperature and protein synthesis), that it down-regulates the receptor in about 2 weeks(Assuming a dosing schedule of 60-120mcgs/day, on a 2 on/2 off day cycle). The aformentioned 2 on/2 off dosing schedule doesn�t work because the half-life of clenbuterol Hydrochloride in the body is 48hrs, therefore it would still be present in the system during the �off� days, giving the beta-2 receptor no time to recuperate and up-regulate.
What to do? Well, if we had a pretty benign compound that drastically increased cyclic-adenosine monophosphate(C-amp) within the cell this would up-regulate the elusive beta-2 receptor. You know what, it exists!, it�s called Ketotifen(brand name Zaditen). This compund at a dosage of 6mg/ spread throughout the day will completely negate clenbuterol�s down-regulating effects on the beta-2 receptor, due to the fact that it increases C-amp levels within the cell by an amazing 80%.
Now, everybody is thinking: �Great, now I can take Clenbuterol forever�; however, there is a catch.
While Ketotifen will keep the beta-2 receptor up-regulated, during the 4th or 5th week of clenbuterol use(depending on the person), active T3 levels within the body will decline and production of rT3 will increase(Due to the fact that Clen decreases T3 levels in the body). This will shut down Clenbuterol�s fat-burning effects. However, there is a way one can combat this down-regulation of one�s own T3 levels. The answer, is exogeneous T3(brand name cytomel). T3, at a dosage of 25mcgs daily will not shut down TSH to a large degree, so therefore could be taken for quite a while(6-8 weeks). This latter dosage will boost T3 levels back to normal, helping clenbuterol continue its fat-burning effects.
So, now we have the optimal 10 week Clenbuterol cycle:

Days 1-14: Clenbuterol at 80 mcgs daily+6mg Ketotifen daily
Days 15-70: Clenbuterol at 80mcgs daily+25mcgs T3 daily+6mg Ketotifen daily

T3 Thyroxine Tricana

Usually comes in bottles of 100 tablets at 5 - 100 mcgs. per tablet. Cytomel is a synthetic thyroid hormone (Type T-3). This stuff works by increasing the synthesis of protein, carbohydrates, fats and RNA in the body thereby increasing your Basal Metabolic Rate. Cytomel is an excellent fat burner since your metabolism is greatly increased while being on it. Cytomel will still burn fat when you are taking in a lot of calories since your metabolism really high. Forget Ripped Fuel, and E/C/A stacks. When Cytomel is taken with clenbuterol, it is the best fat burning combination available today.
Now we come to the side effects. If your thyroid gland fails to kick back in after you stop feeding yourself cytomel, then you will have to take them for the rest of your life. It would be a wise move to have your thyroid gland checked out by your doctor before embarking on a course of self prescribed T3. You can also suffer tremors in the hands, insomnia, nausea and headaches. This product should be avoided if you are diabetic as it reduces the effect of insulin. On the good side cytomel increases the metabolism of protein, so you are advised to use it whilst on gear to get the best benefits.
Don't be on T3 for more than five weeks at a time, then have an eight week break to allow your body to start its own T3 functions.

WHy not use clen as stated before, 2wks on and 2wks off ? It works for me. Maybe I'm making things too easy on myself