The half-life of Toremifene is 5 days.
Generally speaking that means an approximate time frame of 25 days (5 half-lives) before mostly complete elimination. Complete elimination will certainly vary from person to person. Hepatic or metabolic impairment will also slow down the elimination of active metabolites. It would not be out of the question that Torem still had some activity within your body 4+ weeks after cessation of use.
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Test Cypionate has a half-life of 8-16 days depending on who you want to listen to and the way in which it is delivered and/or metabolized within the body. If you take the low number as your marker, that would mean that complete elimination should happen somewhere around 40 days after last injection. Again, results will vary depending on the overall health of the individual.
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Some doctors used to (I hope they don't anymore) prescribe Test Cyp injections once per month for TRT protocols. Most people would crash after 2+ weeks after their last injection as they transition from measurable peak to trough. This doesn't mean that the ester (Test) has fully cleared and is no longer active. It just means that the action of the compound is reduced.
The frequency of injection as well as the amount of injected active and duration of usage will also play a role in the overall metabolism and complete elimination of the substance. Injecting 300mg of Test cypionate is double or more than double the often recommended TRT dosage of 100-150mg of the compound. This will give you a longer elimination time as well as a Total T number that is in the supraphysiological range. Not to mention it affects the time it would take to return to 'baseline'. Depending on so many overall health markers, I would assume your 'just-after-peak' total T numbers were somewhere in the range of 1500-2500 ng/dl?
I would absolutely expect daily usage of Toremifene to have a minor impact on LH and FSH while on a Test cycle. Unfortunately you can not prove how that would translate to overall Test production while you are also at the same time injecting Testosterone. Slightly elevated levels of LH and FSH would certainly make for an easier transition to overall recovery post-cycle though. I guarantee you the Torem and Test-c still played a role in your overall Total T numbers while being just 4 weeks removed from last using them. I have no idea how large of a role they played.
Based upon the fact that your Total T would have been in the supraphysiological range after your last pin, and based upon the fact that both the Test cyp. and the Torem would still have had some level of activity 4 weeks after their last use, you just can't prove that using Torem on cycle is a reason to claim a complete recovery and thus negate the usage of a SERM-based PCT. The real indicator of recovery would have been bloodwork 8-10 weeks after cycle. This would actually show recovery (versus a baseline) after a steroid cycle. Total Test levels 4 weeks after ANY cycle are NOT indicative of where they will be 8-10 weeks after ending the cycle.
Another thing to consider is that most people run typical 10-14 week Test-e cycles at a weekly dose of 500mg. This will amplify the actions and effects, and side-effects while on cycle. 500mg of Test with no AI and the use of a SERM may make for some very uncomfortable and unhealthy sides while cycling. Torem will not completely eliminate the binding of circulating estrogens in all potentially sensitive tissues. I would also love to see how having such potentially elevated estrogen levels (from dual use of high-dosed Test and a SERM) would translate to recovery and sexual function after cycle. It would also ampifly the need for proper PCT after cycles of this length and this and even higher doses of Test (500+ mg EW). The truest indicator of your claim would be to run a typical 12 week 500mg Test cycle with nothing but 60mg daily Torem as a support supplement. Then go and get your Total T measured 4 and 8-10 weeks after completing the cycle. I'd personally love to see the results.
One reason I would not unnecessarily take a SERM on cycle is because of how it can potentially prolong the QT interval. Torem (and Nolva) is one of the compounds that can potentially affect this. Maybe a person also uses benadryl to help with sleep and Cialis/Levitra/Viagra for recreational use or even BP control on cycle. Both of those compounds can also prolong the QT interval.
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In my opinion we should always use the least amount of drugs to get the action we want. What if someone was running a 20 week Test and Deca cycle? Would you suggest they use Torem @ 60mg ED for 5 months and then not PCT? Seems a bit foolish and risky to me...
I'm glad that you are happy with your protocol and your results. Next time run a typical Test cycle with no PCT and get bloodwork done 8-10 weeks after cycle, while making sure not to use any Test boosters or medications that will help raise overall Test numbers. This will give you a better sense of actual recovery.