Start at 0mg and increase if necessary. Going .25mg at a time is probably best. But unless you got it from a really good source I would not count on it being dosed anywhere near accurately. If you’ve ever seen raw adex powder it’s unbelievably small. 1g, which is 4,000 doses of .25mg, could fit on your thumbnail. Zero chance your stuff is dosed accurately if it’s from some research chem company or one-off lab. Just be aware.
Yes like iron said start with 0 then see if you have any issues and proceed from there. With how quickly the test prop is in and out of your system chances are you will not need any. Chances are if you do have any sort of estrogen issue it’s going to be very slight basically just above none existent. I would only consider using the arimidex if you show serious signs of estrogen not some little bit of slight water retention.
For some unexplainable reason we just don’t seem to get estrogen issues with the propionate ester like we do with the enanthate ester, even if the total mgs per week are exactly the same.
I am not a doctor and everything I feel I know or think I know tends to come from reading and observing myself or others. If you took identical twins and gave each one the same mgs of test per week but one was prop and the other enanthate I would bet the enanthate twin would show estrogen sides well before the prop twin. I would also bet that if the dose was right but still the same total mgs per week then the enanthate twin would have estrogen issues and the prop twin would not.
I really think we have the issues more with the long esters simply because it’s a sustained high level of the given hormone. That extra high level of whatever hormone is just constantly there at the high level and our bodies are use to fluctuating levels throughout the day and even throughout the month somewhat. Something different happens in our bodies with these long esters. It might simply be that the short esters have more of a fluctuating level like our natural hormone levels and thus the body can more easily adapt to the up and down of the short ester even though the levels are ridiculously higher than anything natural. Look at test enanthate vs propionate and deca vs NPP. Then of course you have almost the opposite with tren ace vs enanthate but there is always an exception to the rule especially with AAS.
Again like Iron said just proceed with the cycle but don’t just start taking the arimidex. Wait and see if you have some sort of significant issue.
Another thing to keep in mind is most of the “dosing” for AIs is for long esters. If you take two equal shots of test enanthate each week at 250mgs and you know you aromatize X amount so 0.5mgs of arimidex on injection days keeps you in check. (The are made up numbers so don’t go and dose yourself off of this) That arimidex has a three day half life and when we inject test enanthate there is this surge of Testosterone being released from the ester that lasts around 3 days. After the three days if you don’t take anymore test enanthate then your levels come down. So the half life of arimidex and the surge of test both have a similar time frame. Aromasin only has like a 12 hour half-life I think but it’s effects last about three days because of how it attaches and basically kills the Aromatase enzyme.
So if you need 0.5 mgs for 250mgs of test enanthate then logic would tell you that you need 0.25 mgs for 125mgs of test prop. The problem with that is the half life of prop. Basically for the first 24 hours after the shot then that arimidex probably wouldn’t block enough to crash your estrogen levels but the second 24 hour after the shot the amount of test being released from the propionate ester goes way down. That second 24 hours you still have nice high levels of arimidex but much lower levels of test being released.
Really i think the test prop half life is just to quick to trigger massive amounts of the Aromatase enzyme but I am not a doctor and I don’t know how quickly our bodies react to the test prop release and i don’t know how quickly our bodies react to the lowering levels of test prop. Then there is day three when we still have arimidex in our bodies left over from the previous dose and we take our next 125mgs of test prop along with another 0.25mgs of arimidex.
What I am getting at is the half life of test prop and arimidex don’t line up like with test enanthate. So IF you do end up needing some estrogen support on this cycle then I would start the arimidex dosing in accordance with it’s half life not the test prop injection schedule. Remember it easy to increase but once you cross the line into too much you are going to feel like crap without any estrogen. So start small only if you have to, then give that dosing a try for over a week then see if you need to increase.
Arimidex is kind of like fertilizer: too much will kill your plant (or vine). Everyone has a different rate of metabolic absorption. If you are someone who always carries stubborn body fat, you may need more than someone who is always lean no matter what they eat or do.
My suggestion is to use something like 0.5 mg’s per week while you have elevated T levels, and get some blood work done. For me taking 750 i.u.'s of HCG per week, I need 0.75mg’s of Arimidex to keep the Aromitase enzyme under control.