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Prescription drug Published: RCT evidence Established use

Tamoxifen (Nolvadex): dosing, timing and what to expect

A SERM that blocks estrogen receptors in breast tissue. Used to treat or prevent gynecomastia and to restart the HPTA after suppression.

Also known as Nolvadex, Tamoxifen citrate

Quick reference. Everything you need to run Tamoxifen (Nolvadex) — dosing, frequency, reconstitution math for the vial sizes people actually buy, and what it stacks with. For anything specific to your situation, ask the Guru.

Tamoxifen (Nolvadex) quick start

Route
Oral
Typical dose
10–20 mg
Frequency
Daily
Half-life
About 5–7 days.
Cycle
4–12 weeks, or as directed for gynecomastia.
These are the numbers people actually run, drawn from the published record and from what the community has settled on over time. Educational reference, not medical advice — a starting point to work from, and one you can adjust as you learn how you respond.

How to run it

How often
Daily
Cycle length
4–12 weeks, or as directed for gynecomastia.
Half-life
About 5–7 days.
Route
Oral
Consistency matters more than perfect timing. Pick a slot in your day you will actually keep, and let DoseIQ handle the rest.

What to expect

Most people tolerate Tamoxifen (Nolvadex) well. Here is what is worth knowing going in, so nothing catches you by surprise.

A prescription drug and worth treating as one. It raises clotting risk and interacts with anticoagulants, so it needs a doctor in the loop rather than a forum. Note that it blocks the receptor instead of lowering estradiol, so your serum E2 can climb while it is working — that reading is not the problem it looks like. Suited to defined courses, not open-ended use.

Preparing it

Tamoxifen (Nolvadex) does not need reconstituting — it comes ready to use. Not applicable — oral tablet.

This page is an educational research reference and is not medical advice. Dose figures reflect the published record and what the community has converged on — starting points to weigh, not instructions. Consult a qualified healthcare provider before starting any protocol.