Based on the concentration curve over time of T enanthate IM and the T1/2 of
arimidex, it appears that
Arimidex EOD might drive E2 levels too low in the latter part of the week. T reaches peak concentration rapidly in about 18 hrs. and begins to drop after 30 hrs. Higher doses would result in higher peaks and longer intervals. E2 peaks in step with T but remains high for about 2 days. This leads me to conlude that the first dose of
Arimidex(T1/2=50hrs) is best taken 12 hrs after injection. The concentration curve is unknown but assumed that some time is needed to achieve maximum concentration.
The second dose is taken two days later at half strenght since the T concentration is falling during this time. During the last two days of the week E2 is naturally in the normal range. But his is when many take
hcg.
Maximal plasma
hCG levels will be reached in males approximately 6 and 16 hours after a single intramuscular or subcutaneous injection of
hCG with a T1/2=33hrs. Considering this and assuming that 250iu hcg will result in T levels somewhat less that those achieved with T injectable, 1/2 the initial Arimidex dose seems appropriate on day 5. All things considered. 1/2 mg and 1/4 mg seems about right and I will begin following this regimen.
PREGNYL® Arimidex (Anastrozole) clinical pharmacology - prescription drugs and medications at RxList http://forum.mesomorphosis.com/attac...3&d=1139879356