ILAI answered:
Going from 40 mg to 50 mg Mon/Wed/Fri takes you from 120 to 150 mg/week, and the main cost is that your Oct 26, 2026 Quest draw will no longer read a steady state. I’m treating 50 mg IM Mon/Wed/Fri as your current dose from today. Is that right?
Timing
The record shows you’ve been on 120 mg/week only since Sep 22, 2026, and on 200 to 250 mg/week before that. The libido drop may be the summer dose washing out rather than 120 mg/week being too low. The Sep 23, 2026 free T of 149.2 pg/mL was drawn two days into that washout, and 120 mg/week never reached steady state before you changed it.
Cypionate needs about 4 to 5 half-lives to settle, so roughly 5 weeks. On Oct 26 you’ll be 17 days into 150 mg/week, partway between the two doses. That draw can’t tell you where 120 settles or where 150 settles.
Other plausible causes of the libido drop
- Lexapro 10 mg: SSRIs reliably blunt libido. This has been a constant, but it lowers your baseline.
- Sleep: you logged "can’t fall asleep" 8 times in 30 days, most recently at 8/10 on Oct 6, 2026. Your HRV this morning was 22 ms against a 7-day average of 37.3. Poor sleep and stress suppress libido independently of T.
- Tirzepatide restart on Oct 1, 2026 and the GI episode: both cut appetite and drive generally.
- E2: anastrozole stopped Sep 21, 2026. The Rythm E2 of 23.6 pg/mL isn’t MS-based. HCG at 750 IU/week plus more testosterone will push E2 up, and low E2 also hurts libido.
What I’d watch at 150 mg/week
- Hematocrit: 50.44% on Sep 23, 2026, with ferritin now 124 ng/mL, so iron no longer limits red-cell production. The Oct 12, 2026 CBC matters more now.
- Total T: using your calibration of 5 to 5.5 ng/dL per mg/week, the estimated range is 750 to 825 ng/dL. That calibration came from draws on HCG at 1,500 IU/week, so treat it as rough. It’s still well under your 1,200 to 1,400 ceiling.
- Overnight oxygen: blood oxygen dipped below 88% on 5 of 22 nights. More androgen and a higher hematocrit make a sleep evaluation more worthwhile.
For your prescriber to consider
Send this through Message practice on Today: the dose change and the reason, the Oct 12 CBC, and whether to move the Quest draw to around Nov 13, 2026. A draw then would be about 5 weeks on 150 mg/week, so free T by dialysis and LC/MS/MS E2 would show where this dose actually lands. If you keep Oct 26, read it as a mid-transition snapshot and don’t titrate from it. The ezetimibe and ApoB decision can still use Oct 26, since ApoB isn’t waiting on testosterone steady state.
Track libido in your symptom log every few days. If it recovers within 1 to 2 weeks, before levels could have risen much, that points to sleep and stress rather than dose.




