Thoughts on my Height + Recomp stack? (Erdafitinib / Letro / Test)

lettucemale

lettucemale

Njul
Joined
Apr 1, 2026
Posts
5
Reputation
2
I've been designing a 30 week protocol that I tried to make it for linear growth and after its done I will do a nice recomp cycle, any thoughts?



Background / Stats:

Age: 16 (turning 17 on Dec 24)

Current Height: 5'9

Parents: Mom is 5'7–5'8, Dad is 5'9–5'10

Growth History: Haven't grown at all in the past year; have basically been stuck at 5'9 since I was 13 or 14.





Here is what I came up with:



Weeks 0–22: Height

150mg Test E (weekly base)

2.5mg Letrozole EOD

10mg Tamoxifen daily

8mg Erdafitinib daily (5 weeks on, 2 weeks off)



Weeks 22–30: Body Recomp Phase



350mg Test E weekly

25mg Anavar daily

300mg Masteron weekly

2.5mg Letrozole EOD

10mg Tamoxifen daily




My reasoning for each compound:




Erdafitinib (Balversa): It’s a pan-FGFR inhibitor. FGFR3 basically acts as the biological brake on bone growth in cartilage. My thinking is that blocking FGFR3 takes off the natural speed limiter on chondrocytes, triggering a rapid linear growth spurt independently of standard GH/IGF-1 signaling. I set the 5-on/2-off pulse to manage systemic toxicity.

Letrozole: Estrogen is what actually fuses and closes epiphyseal growth plates. Running 2.5mg EOD is meant to crush aromatization down to zero so the growth plates stay open indefinitely while Erda elongates the long bones.

Tamoxifen: Added as extra insurance to block estrogen receptors directly at the bone tissue level in case any residual E2 slips through.

Test E (150mg): Just a baseline TRT dose to keep normal physiological functions running while endogenous production is shut down.

Phase 2 (350mg Test / Anavar / Masteron): Standard dry anabolic stack to rapidly build lean tissue, harden up, and drop body fat once the height phase ends.




A few potential issues / questions I want feedback on:




Letro + Tamox interaction: Does Tamoxifen induce hepatic clearance of Letrozole enough to make running them together counterproductive compared to just using an AI solo?

Crashed E2 Risks: Is 2.5mg Letro EOD going to crash E2 so hard that joint pain, ruined lipids, and cartilage degradation offset the growth benefits?

Erdafitinib Toxicity: For anyone who has looked into pan-FGFR clinical data, how significant are the risks of Central Serous Retinopathy (retinal fluid buildup) and hyperphosphatemia (phosphate spikes), and is there a reliable way to mitigate them off-label?

Steroids vs. Plate Fusion: Will blasting Test, Var, and Masto in Phase 2 accelerate skeletal maturation and fuse whatever plate cartilage is left, even with heavy AI usage?
 
Steroids vs. Plate Fusion: Will blasting Test, Var, and Masto in Phase 2 accelerate skeletal maturation and fuse whatever plate cartilage is left, even with heavy AI usage?
Androgens will not fuse growth unless they aromatize into estrogen, make sure you're using non-aromatizable compounds only
Erdafitinib Toxicity: For anyone who has looked into pan-FGFR clinical data, how significant are the risks of Central Serous Retinopathy (retinal fluid buildup) and hyperphosphatemia (phosphate spikes), and is there a reliable way to mitigate them off-label?
Make sure to use a phosphonate binder, such as Sevelamer in your stack. All of this while avoiding foods that contain phosphonate.
For nose bleeds, dry mouth and dry eyes, use Pilocarpine Hydrochloride.
Crashed E2 Risks: Is 2.5mg Letro EOD going to crash E2 so hard that joint pain, ruined lipids, and cartilage degradation offset the growth benefits?
All these effects are overlooked and 100% worh the height gains, if they're too harsh for you, you may add low dose Deca/NPP in your stack
Letro + Tamox interaction: Does Tamoxifen induce hepatic clearance of Letrozole enough to make running them together counterproductive compared to just using an AI solo?
They're differents classes of drugs, but a good combination.
Test E (150mg): Just a baseline TRT dose to keep normal physiological functions running while endogenous production is shut down.

Phase 2 (350mg Test / Anavar / Masteron): Standard dry anabolic stack to rapidly build lean tissue, harden up, and drop body fat once the height phase ends.
Lower test dosage to sub-TRT 50~70 mg

Overall good stack but lacking some things such as HGH(Calculate your dosage based on your weight)
 
  • +1
Reactions: lettucemale
Androgens will not fuse growth unless they aromatize into estrogen, make sure you're using non-aromatizable compounds only

Make sure to use a phosphonate binder, such as Sevelamer in your stack. All of this while avoiding foods that contain phosphonate.
For nose bleeds, dry mouth and dry eyes, use Pilocarpine Hydrochloride.

All these effects are overlooked and 100% worh the height gains, if they're too harsh for you, you may add low dose Deca/NPP in your stack

They're differents classes of drugs, but a good combination.

Lower test dosage to sub-TRT 50~70 mg

Overall good stack but lacking some things such as HGH(Calculate your dosage based on your weight)
What else am I missing mind helping me finish this 😊🙏
 

Similar threads

imachudd
Replies
3
Views
45
Anavarforthehuz69
Anavarforthehuz69
jonathan_will
Replies
9
Views
55
jonathan_will
jonathan_will
BlameGeneticsNotMe
Replies
5
Views
29
myoglobin
myoglobin
malyce
Replies
29
Views
169
holyincel333
holyincel333
nixmogs
Replies
10
Views
57
nixmogs
nixmogs

Users who are viewing this thread

Back
Top