Anti-Estrogen Therapy
Best for Men already on TRT — or starting one — whose bloodwork shows estradiol creeping into the symptomatic-high range: bloating, breast tenderness, mood flatness, low libido despite “good” total T.
- A daily-or-every-other-day tablet that brings estradiol back into the optimal physiologic range.
- Adjunct, not a standalone protocol — added to your TRT only when bloodwork shows you need it.
- Less bloating and water retention, sharper mood, restored libido and morning erections.
- HSA and insurance eligible.
Qualifying patients complete a comprehensive bloodwork panel (starting from $485, 95% refundable if our specialist determines you’re not a candidate) before your first prescription ships. Bloodwork lets our specialist confirm anti-estrogen therapy is safe for you and sets a baseline for dosing.
Start my assessment- 4.9★ on Google
- Health Canada approved
- Specialist prescribed
Precise titration. Steady balance.
Anti-Estrogen Therapy
- Specialist-led dose titration to your estradiol bloodwork — not a flat starter handed to every patient.
- Dose calibrated to bring estradiol back into the optimal physiologic range — not crash it — with follow-up bloodwork that catches over-suppression early.
- One small tablet every other day, as prescribed — easy to fit alongside your TRT routine.
- Patients report less bloating and water retention, sharper mood, and libido and morning erections returning as estradiol settles into range.
Optimized testosterone. Measurable results.
Your bloodwork sets the target. Our specialist tunes the protocol around your symptoms and goals, then re-tests and adjusts until your levels reflect where they should be — not just within range, but optimized.
Start my assessmentUnoptimized
Total Testosterone
320 ng/dL
Optimized
Total Testosterone
952 ng/dL
Normal Range: 300–1000
Illustrative reference values. Your protocol and resulting bloodwork are individual — outcomes vary.
Built to pair. Tuned to your body.
This isn’t a standalone — it’s added on top of your primary TRT, and only if your bloodwork shows estradiol climbing.
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Injectable Testosterone
Injections are where estradiol climbs most often. If your bloodwork shows it, the add-on goes in.
See protocol -
Fertility-Friendly Testosterone
Estradiol stays steadier here than on injections — but it can still climb. Your bloodwork tells us.
See protocol -
Topical Testosterone
The lowest-risk protocol for estradiol — but it still happens to some men. The add-on is there if it does.
See protocol
The Executive Ceiling is Biological.
Introducing Gambit Gold — Canada’s most advanced executive health program. It gives you direct, one-on-one video meetings with Dr. Hatem Salim — Gambit’s medical director and Director of Internal Medicine at Western University — on demand. He walks you through your file and explains exactly what every marker means, and what to do next.
A yearly physical sees a snapshot. Gold builds a record.
It’s easy to get started.
01
Start your assessment
Tell us about your symptoms and goals online. No GP referral.
02
Talk to our health team
A real human walks you through your options — including whether to start with a quick eligibility test or the comprehensive panel required to begin treatment.
Comprehensive is ~95% refundable if you’re not a clinical candidate.
03
Get specialist-reviewed bloodwork
Bloodwork at LifeLabs, APL, or Dynacare. Dr. Salim, our top internal medicine specialist, reviews every panel and builds your personalized protocol.
04
Begin treatment. Stay tuned.
Medications ship to your door. Our specialist runs regular bloodwork and tunes your dose to your numbers.
How does anti-estrogen therapy work?
Anti-estrogen therapy is a low-dose oral tablet, taken every other day, that lowers how much testosterone converts into estrogen. The aim isn’t zero estrogen — estrogen is essential for libido, mood, joints, and bone health. The aim is to bring elevated estradiol back into the optimal physiologic range. Your dose is calibrated to your bloodwork, not a flat starter.
How do I take it?
One small tablet, every other day, with or without food. No special routine — many men take it on their TRT injection days as a memory cue. Our specialist sets the exact dose and cadence based on your estradiol response, and adjusts as your bloodwork comes in.
When will I notice changes?
Estradiol begins lowering within 24 hours of your first dose. Most men notice the symptoms of high estrogen — bloating, water retention, mood flatness, dampened libido — ease as estradiol moves back into range over the first few weeks. Follow-up bloodwork confirms the dose is landing where our specialist wants it.
What are the potential side effects?
The biggest risk with any anti-estrogen therapy isn’t the medication itself — it’s over-suppression. Estradiol is essential for male physiology, and pulling it too low can cause joint aches, mood flatness, low libido, and unfavourable lipid changes (including a drop in HDL). Long-term over-suppression can affect bone density. This is why the dose matters more than the drug. Gambit’s protocol uses a low dose, every other day, with follow-up bloodwork that catches over-suppression early so our specialist can adjust before you feel it. The aim is to bring estradiol back into the optimal range — not crash it.
Will this lower my testosterone?
No. Anti-estrogen therapy doesn’t lower testosterone — it lowers the conversion of testosterone into estrogen. For most men on TRT, total testosterone holds steady or nudges slightly upward. What changes is the testosterone-to-estradiol ratio, which is what drives the symptoms of elevated estrogen in the first place.
Could this lower my estradiol too much?
Your dose is calibrated to your bloodwork, not a flat starter — that’s the safety mechanism. Estradiol is essential for libido, joints, mood, and bone health, so over-suppression matters. Gambit’s protocol is designed around that risk: a low dose every other day, plus follow-up bloodwork that catches over-suppression early. If your estradiol drops below your optimal range, our specialist reduces the dose or pauses the medication before symptoms set in. The aim is to bring estradiol back into the optimal range — not crash it.
Do I need to take this forever?
Not necessarily. Anti-estrogen therapy is an adjunct — added to your TRT only while your bloodwork shows you need it. If your aromatase rate normalizes, your TRT protocol changes, or your estradiol settles into range on a lower dose, our specialist may reduce or discontinue the medication. Bloodwork drives that decision.
Do I need bloodwork to start?
Yes. Anti-estrogen therapy is bloodwork-gated and specialist-monitored. The relevant markers are Estradiol (E2), Total Testosterone, Free Testosterone, and SHBG — these tell our specialist how much testosterone is converting and how much estrogen is biologically active. You can run the panel at any local lab — LifeLabs, APL, Dynacare, or your hospital lab all work. If you’ve had recent bloodwork, share it during your assessment as context — but our panel includes the markers Dr. Salim needs to titrate your dose, so you’ll still complete the Gambit bloodwork.
Still have questions? Book a call with our health team
Not just an online clinic. We’re a specialist’s office, online.
- Direct access to our specialist and health team — not a queue, not a chatbot.
- FRCPC internal medicine — reading your file personally, not skimming a stat sheet.
- Testosterone, growth hormone, weight loss, hair loss, sexual health, and more — one specialist, not five clinics.
- Hormone therapy from a top internal medicine specialist — not a generalist or nurse practitioner with a prescription pad.