Injection Frequency

Injection frequency is one of the most debated protocol decisions in TRT. Weekly injections are simpler but produce higher peak-to-trough swings in testosterone and estradiol. Twice-weekly, every-other-day, and daily subcutaneous protocols flatten those swings, often improving mood stability, estradiol control, and hematocrit management at the same total weekly dose. Threads in this tag compare real-world lab results across frequencies, discuss why some men feel better on less frequent dosing despite the pharmacokinetic logic, and cover transitions between protocols.
  1. C

    Injection Frequency 2xs vs 3xs

    Watched a recent video by Dave Lee and he discussed how 3xs a week (MWF) injection frequency has benefits to stable levels and lessen side effects. Currently on 2xs a week 50mg x2) but if it will optimize best at 3xs, then I would like to know. Thanks!
  2. S

    Injection frequency & effects on other issues

    I currently do injections 2x per week. I'm with Defy Medical. My H&H always gets high and I have to donate blood. I also don't sleep well. I've heard from here and other places that increasing the frequency of injections (some say every day) that the H&H doesn't increase, at least not as much. A...
  3. B

    Let's Settle This: Subcutaneous vs. Intramuscular Testosterone Injections

    Hello Everyone, For the past three months, l've been doing subcutaneous testosterone cypionate injections every two days as recommended by my urologist to minimize side effects. However, I've been dealing with some acne on my back and face. Today, I had a consultation with one of the top...
  4. G

    Trimix Usage vs. Recommendations

    To be up front I am going on a bit of a adult getaway with my wife here soon where we will be at a romantic cabin for 5 nights. Now I know when I got Trimix (mind you I have only used it twice now) there were a number of warnings, such as no more than 3 times in a week, always alternate sides...
  5. M

    Injection frequency and dosage?

    I've been on TRT for several years with a protocol of 100mg cypionate per week. My injection frequency is every 3.5 days. At this dose my E2 and HCT were always just barely below the cap for normal range. I was wondering if anyone could comment on their experience of injecting every other...
  6. B

    Advice on transitioning from pinning ED to E3.5.....

    I've been on TRT for about 3 months and I am still trying to eliminate major side effects. I am very sensitive. 7mg a day of Test Cypionate gives me anxiety/ insomnia... any more leads to high blood pressure and pulse. I'm at 5mg a day and my sleep still sucks, a bit speedy and a faint head ache...
  7. N

    Frequency of injections and prostate correlation

    Hey guys, I recently decided to chase the libido and well being dragon and changed up my dosing protocol. Went from daily TC 10-20mg to 80-100mg E5D + Enclomiphene EOD. I felt fine before. Libido was just off and maybe a little brain chemistry. So I figured I’d experiment some. Unfortunately my...
  8. W

    Swapping To 1 Injection Per Week.

    Just got my levels back and again they are perfect. Traveling and typing this on my phone so not gonna go through and copy paste everything regarding bloodwork but even my docs at Defy agree everything is spot on. After trying subq, daily injections and all other different methods the only...
  9. T

    Libido/erectile function peaks in late evening

    I take my Test E injection between 6 and 7 in the morning but its effects are felt between 9 and 10 in the evening. This has been for about two months. I do experience some nocturnal erections but no morning wood. Libido/erectile function is mostly flat during the day. A couple of days ago...
  10. M

    Switching from IM to Sub Q injections

    For those that switched from IM injections to SubQ, did you have to adjust your dosage at all to get the same effective Testosterone levels? I inject 0.18 ml of testosterone cypionate 2x per week and am at a trough blood level of 600 which is perfect for me, all other measures such as estradiol...
  11. D

    Who feels better on e5d or e7d compared.to more frequent shots?

    So after some trial and error I came to th3 conclusion that ed eod mwf dont work at all for me, i get low T symptoms even on 200mg per week when injecting that frequent. I feel much better on e3.5d but not good enough. Now Im trying out e5d and if that isnt good enough i may even try e7d...
  12. G

    High Free Test — Change Protocol??

    Hi everyone - relatively new to TRT. About 3 months. This is my first labs since starting. Paid for on my own so not comprehensive, but has Estradiol, Testosterone, Free T, and SHBG. I feel ok, not great. Definitely better than pre TRT I would say, but not optimal. I’d say major issues are some...
  13. A

    Has anyone gone from EOD to Daily injections? Do you feel any difference?

    Im Currently on 30 mg test cyp every other day, and I’ve noticed that on my injection day I feel off. Just got blood work done, I’m assuming my SHBG is super low because since I got on TRT around a year ago it’s gone from 80 n/mol to 45 n/mol to 35 n/mol to 29 n/mol. So I’m assuming it’s even...
  14. R

    Single dose vials vs multi dose ? Why.

    So I don’t know if this is a dumb question or not . But I’m using the 200mg testosterone cypionate “single dose “ vials but I don’t use it all . In fact not even half . Why can’t I keep using it instead of throwing it away? What makes the multi dose vial different . Practically looks the same
  15. Alectrify

    Young Guy on TRT 4 year update

    Hello all, This is my 4 year update on what has been a very long and serious last few years. I’ve posted on here before awhile back while I was on 2nd year of Clomid monotherapy, but I couldn’t remember credentials to get back to that account. Nevertheless, here I am and I promise to remain...
  16. T

    M W F shot breakdown

    I’m currently prescribed 1ml/200mg a week and I’m splitting the doses every 3 days. I would like to split the dose to 3 times a week due to low shbg. How could I split this dose using a 3ml syringe. Thanks for the help.
  17. W

    When was the last time you changed your injection frequency?

    Ive made a few changes before such as 100mg TC once a week For 6 months to 50mg twice a week (100 Weekly) For 6 months, and then to 40mg 3 times a week (120mg). Of course I always allowed many weeks for the adjustment and I usally fely benefit after 4 weeks. This last change is coming up on 6...
  18. H

    Testosterone and Insomnia

    I've suffered with insomnia for over 15 years and have been trying just about everything to get a good night's sleep. Over the past year I've reduced my Testosterone Cypianate dosage from 80mg/wk to 50mg/wk. I've gone from a 920 TT level to roughly 750 making the change. My sleep improved a...
  19. M

    Considering going from E2D to E3D injections. Thoughts?

    Been on TRT for around 21 months. Current protocol 105mg PW Cypionate, inject E0D. Reason for EOD injections is due to SHBG being in the low to mid 20's. (20-25, 11 blood tests) All bloodwork has been great with no issues at all. I'm considering changing to E3D injections purely for the...
  20. B

    If natural Testosterone peaks at 10AM, 12 hours later?

    From what I've gathered online, injected testosterone peaks 24hrs after injection. Additionally I've read natural testosterone peaks at 10AM. To minimize peaks and troughs does it make sense to inject at 10pm so the peak is exactly 24hrs later and 12hrs between both natural peaks?
  21. D

    SHBG rule of thumb on injection frequencies

    So, as I have read to get this straight, correct me if I am wrong if #1 low shbg 20 and below seems doing smaller injection more often perhaps daily injections are best #2 Average SHBG 25 to 35 -range 2-3 times per week injections. #3 40 and up high shbg once per week? I will tell you my shbg...
  22. T

    Injection frequency

    I can see eod injections mimicking how the body naturally fluctuates (about 30% daily) because the smaller the dose/depot in the muscle the faster it releases and peaks. However if the dose/depot is larger it takes longer to release and peak which would cause injections to overlap and produce a...
  23. G

    TWICE PER WEEK TESTOSTERONE INJECTIONS ARE ASSOCIATED WITH GREATER RISK OF HIGH HEMATOCRIT

    MP76-05 TWICE PER WEEK DOSING OF INTRAMUSCULAR TESTOSTERONE (T) IS ASSOCIATED WITH GREATER RISK OF ERYTHROCYTOSIS I wish they had tried 50 mg twice per week instead of 80-150 mg twice per week. INTRODUCTION AND OBJECTIVES With an increasing awareness for mens health, marketing for...
  24. R

    Will Everyday or Every Other Day TRT Injections lower or Raise E2 levels?

    I searched and I can't seem to get a answer. Question with LOW SEX HORMONE BINDING GLOBULIN = 8 Range: 10-50 Will Everyday or Every Other Day injections work to raise or lower E2 and bring SHBG up. I was under the impression that ED injections will actually cause E2 to be higher and bring up...
  25. C

    How often to injection prop/cyp blend?

    Hello. My doctor has prescribed a blend of 20 percent propionate and 80 percent cypionate. I have mid range shbg of 35. What is the most appropriate time to space out injections? He said every 3 days but I thought propionate needed to be inject every other day at least. Thank you.
  26. J

    Is my SHBG low, optimal or high?

    I've just discovered that SHBG levels will determine what injection frequency is best for the individual. My last two SHBG tests were 36 and 42, range 18 - 57 nmol/L Are these considered high, optimal, or low?
  27. Z

    Less frequent injections

    This really does not pertain to me but, I constantly browse forums and there always seems to be posts about people on TRT that say they feel worse when they tried more frequent injections. My question is why is this when the most common knowledge is more frequent injections equal less swing in...
  28. N

    How often should I be injecting with an SHBG in the mid/low 20s?

    My shbg has come up at 23 and 25 on separate tests. I'd like to inject as infrequently as possible while still being stable. How often should I be injecting? Is every 3 days ok for my T and HCG?
  29. S

    Injection Frequency vs Dosage

    A discussion on another thread - and lots of other anecdotes - raises the question of injection frequency vs dosage. It is not uncommon to read about guys who lowered their E2 by switching to more frequent injections. It is also not uncommon to read that whenever a guy switches to more frequent...
  30. A

    Drug half life calculator

    Apologies if this is posted in the wrong place but this relates directly to a lot of conversations in this section Gents, I have found a really useful tool online that allows you to graph drug half lives over time to see the cumulative effects. I have seen a lot of threads that speak to half...
  31. A

    What should my injection frequency be, and is my shbg "low"?

    Hi all, new here. I got a reading of 24 for my SHBG on my last reading. Based on that number, what would a good injection frequency be? Am I still in a normal enough range for every 3-3.5 days? Any recommended doses for this SHBG number as well? Thanks.
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Injection Frequency

Injection Frequency Injection frequency is one of the most debated protocol decisions in TRT. Weekly injections are simpler but produce higher peak-to-trough swings in testosterone and estradiol. Twice-weekly, every-other-day, and daily subcutaneous protocols flatten those swings, often improving mood stability, estradiol control, and hematocrit management at the same total weekly dose. Threads in this tag compare real-world lab results across frequencies, discuss why some men feel better on less frequent dosing despite the pharmacokinetic logic, and cover transitions between protocols.

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