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Compact view
Research pass: medium Pharmaceutical · Oral NOT-RELEVANT HIGH

Tamoxifen

Extended Research
◈ Extended Research ◈

Our depth — beyond the mirror

Deeper analysis, verdict reasoning, and per-archetype recommendations from our research team.

▸ Editor's verdict NOT-RELEVANT HIGH

a user in this archetype is 20yo male with intact HPG axis at peak natural function, no AAS exposure, no documented or symptomatic gynecomastia, no breast cancer / no BRCA mutation, no fertility concern requiring SERM-driven HPG amplification. There is no indication for tamoxifen in his current profile. Off-label exploration would impose endometrial-irrelevant-but-VTE-real risk, libido suppression, vision risk, and CYP2D6-genotype-dependent unpredictable exposure — with zero compensating benefit. Verdict shifts to STRONG-CANDIDATE only if he develops AAS-induced or severe idiopathic gynecomastia, or pursues an AAS cycle requiring PCT (not on roadmap). Documented here for AAS/PCT context and because users searching "SERM" reach this file.

Research pass: medium
▸ Decision matrix by user profile Per-archetype
  • ★20-30, brain-priority, high cognitive workload, healthy male, no AAS use, no gyno (this-archetype)
    NOT-RELEVANT

    No indication. Off-label exploration imposes VTE risk + libido/mood suppression + visual side effect risk with zero compensating benefit. Brain/cognitive effects: nil to slightly negative (central ER blockade has no demonstrated cognitive enhancement value; neuroprotective ER signaling would be reduced).

  • 20-30 male using anabolic-androgenic steroids, post-cycle PCT
    STRONG-CANDIDATE

    Historical first-line PCT SERM. 20-40 mg/day × 4-6 weeks post-cycle. Modern preference is enclomiphene (cleaner subjective profile, no breast estrogen agonism), but tamoxifen retains role especially when gyno control is also desired (kills two birds — restarts HPG axis + antagonizes breast ER).

  • 20-30 male with AAS-induced gynecomastia (early stage, not fibrotic)
    STRONG-CANDIDATE

    Tamoxifen 20-40 mg/day during cycle + 4-6 weeks post-cycle. Historical first-line.

  • 20-30 male with idiopathic / pubertal gynecomastia
    STRONG-CANDIDATE

    with workup. Better evidence base than raloxifene for pubertal gyno. 10-20 mg/day × 3-6 months. Workup first: total T, free T, E2, prolactin, LH/FSH, hCG, TSH, β-HCG (rule out testicular tumor), liver function. If workup clean and gyno is bothersome, tamoxifen is reasonable first-line non-surgical approach. Stage 3+ fibrotic = surgical excision.

  • 30-50 executive maintenance, normal HPG axis
    NOT-RELEVANT

    for cognitive / general use. CONSIDER for documented gynecomastia, AAS use, or BRCA1/2 prevention (rare in men).

  • 30-50 male with documented secondary hypogonadism wanting fertility preservation
    WEAK

    CANDIDATE vs. enclomiphene. Enclomiphene is cleaner mechanistically (no breast/uterus agonism, more selective hypothalamic action). Tamoxifen retains historical role; mostly supplanted in modern practice.

  • 50+ postmenopausal woman with ER+ breast cancer
    PRIMARY-PICK

    (as adjuvant, often sequenced with AI). FDA-approved indication.

  • 50+ postmenopausal woman, high-risk for breast cancer (Gail score, BRCA, etc.)
    STRONG-CANDIDATE

    for chemoprevention vs. raloxifene — STAR data favors tamoxifen for efficacy, raloxifene for safety; individual decision per patient profile.

  • Premenopausal woman with ER+ early breast cancer
    PRIMARY-PICK

    as adjuvant (raloxifene is not used premenopausally; AIs require ovarian suppression).

  • Male with BRCA1/2 mutation and elevated breast cancer risk (rare but real)
    OPTIONAL-ADD

    for chemoprevention; consult oncology.

  • Anxiety-prone, eugonadal young male
    NOT-RELEVANT

    not an anxiolytic; mood-disturbance side-effect risk.

  • Tested athlete (WADA, USADA, NCAA)
    WADA-BANNED S

    full ban for males in- and out-of-competition. the user untested → irrelevant for him; flag for any future tested scenario.

  • High athletic load, untested status, no AAS, no gyno
    NOT-RELEVANT
  • Sleep-disordered
    NOT-RELEVANT

    not a sleep agent.

  • Recovery-focused
    NOT-RELEVANT

    not a recovery agent.

  • Strength/anabolic-focused, on-cycle, prophylactic gyno protection
    STRONG-CANDIDATE

    during cycles. Standard practice in PED community, lower-cost and longer track record than raloxifene.

  • Strength/anabolic-focused, post-cycle PCT
    STRONG-CANDIDATE

    Standard practice.

  • Pregnancy / breastfeeding
    CONTRAINDICATED

    (Not relevant for users in this archetype.)

  • History of VTE, DVT, PE, or thrombophilia (Factor V Leiden, prothrombin gene mutation)
    CONTRAINDICATED

    in any use case.

  • Active retinal disease or cataract risk
    RELATIVE CONTRAINDICAT

    particularly for chronic use.

▸ Subjective experience (deep)

In women on adjuvant breast cancer / chemoprevention dose (20 mg/day):

  • Onset of breast cancer protective effect: clinical-event reduction over years; not subjectively perceptible.
  • Subjective experience: hot flushes (~50-80%), vaginal dryness (~30%), mood changes (~10-30%), fatigue (~10-25%). Quality of life often impaired enough that some patients discontinue early.
  • Vision: occasional reports of blurred vision, color-vision changes, scintillating scotomas — often subtle, sometimes prompts ophthalmology referral.

In men on PCT or gyno-treatment dose (20-40 mg/day):

  • Onset of HPG-axis effect: LH/FSH detectable rise within 1-2 weeks, T elevation by week 2-4.
  • Onset of breast tissue regression: 4-12 weeks for noticeable reduction; complete resolution may take 3-6 months in early-stage gyno.
  • Subjective effects in men:
    • Hot flushes (~10-25%) — milder than female experience but real
    • Mood changes / mild depression / irritability (~10-20%) — more common than enclomiphene, less common than clomiphene per head-to-head data
    • Visual disturbances (~5-10%) — blurred vision, "shimmering," scintillating scotomas. Stop immediately and do not rechallenge.
    • Libido changes — bidirectional. Most see ↑libido as T rises; minority report ↓libido (mechanism unclear, possibly central ER blockade).
    • Joint pain / stiffness (~5-10%) — mild
    • Headache (~5-15%)
    • Mild fatigue / lethargy (~5-15%)
  • Most users describe tamoxifen as "noticeable but tolerable" during PCT — distinct from enclomiphene's "mostly invisible" subjective profile.

Compared to raloxifene for male gyno: Users report tamoxifen "feels more like a drug" — more mood, sleep, libido impact. Both work mechanistically; tamoxifen has the longer track record and more pubertal-gyno data; raloxifene has the cleaner subjective profile in male anecdotal reports (but evidence base is weaker — see raloxifene file).

Compared to enclomiphene for HPG restoration: Tamoxifen is the older standard; enclomiphene is mechanistically cleaner because it removes the breast/uterus estrogen-agonism dimension and acts more selectively at the hypothalamus. For pure HPG-axis restoration without need for breast antagonism, enclomiphene is the modern preference. For situations requiring breast tissue antagonism (gyno present or threatened), tamoxifen retains its role.

▸ Tolerance + cycling deep dive
  • Tolerance buildup: Minimal in clinical use. ER antagonism doesn't classically downregulate over years of breast cancer adjuvant therapy.
  • Recommended cycle: N/A — designed for continuous long-duration use in approved oncology indications. Off-label male use is short-duration (4-6 weeks PCT, 3-6 months gyno treatment) by protocol design.
  • Reset protocol: Not required for short male use cases. Long-term users do not have established "drug holiday" protocols.
  • Effect retention post-discontinuation: Endoxifen has very long half-life (~14 days steady-state); effective washout takes 4-8 weeks. Breast cancer protective effect persists for years post-discontinuation in adjuvant trials (carryover benefit).
▸ Stacking deep dive

Synergistic with (in approved indications)

  • Aromatase inhibitors (sequential, not concurrent): SOFT trial (premenopausal breast cancer) — ovarian suppression + tamoxifen or AI sequence therapy. Specialist oncology decision.
  • Calcium + Vitamin D3: Standard supportive in chronic adjuvant use.
  • Clomiphene / HCG (in male PCT context, off-label): Combined HPG-axis restoration protocols; community practice without RCT validation but mechanistically reasonable.

Avoid stacking with

  • CYP2D6 inhibitors — paroxetine, fluoxetine, bupropion, duloxetine, cinacalcet, quinidine, terbinafine: Block conversion to active endoxifen, can reduce efficacy >50%. Major interaction. For the user: V5 bupropion option flag.
  • Other SERMs (raloxifene, enclomiphene, clomiphene, toremifene): Redundant ER antagonism. Avoid.
  • Aromatase inhibitors (anastrozole, letrozole, exemestane) without specialist supervision: Combined blockade can crash systemic E2.
  • Warfarin / coumarin anticoagulants: Tamoxifen potentiates warfarin effect; INR monitoring required. Major interaction.
  • Estrogens / OCPs / HRT: Mechanism conflict. Generally avoid.
  • Anabolic-androgenic steroids without thrombophilia screening: AAS hematocrit elevation + tamoxifen VTE risk = compounded thrombosis risk. (the user: no AAS use; but the AAS-using PCT audience this file may serve should note this.)
  • Smoking: Strong VTE risk factor; combined with tamoxifen is avoidable additive risk. (the user: zero smoking, not applicable.)

Neutral / safe co-administration

  • Most non-hormonal nootropics in the canonical stack: Modafinil, citicoline, NAC, magnesium, fish oil, theanine, rhodiola, curcumin, beta-alanine — no major PD/PK conflict. (Theoretical interaction surface minor.)
  • Caffeine: No significant interaction.
  • Creatine: No interaction.
  • Bromantane, Adamax/Semax, Selank: No PK conflict; PD non-overlapping.
  • Modafinil: No major interaction; modafinil is a weak CYP3A4 inducer which could marginally affect tamoxifen exposure but not clinically significant.
▸ Drug interactions deep dive
Interactor Effect Magnitude Action
Paroxetine (strong CYP2D6 inhibitor) Blocks endoxifen formation ~50-65% endoxifen reduction AVOID — clinical mortality signal in Kelly 2010 BMJ cohort
Fluoxetine (strong CYP2D6 inhibitor) Blocks endoxifen formation Major AVOID if alternative SSRI possible
Bupropion (moderate-strong CYP2D6 inhibitor) Blocks endoxifen formation Major AVOID — relevant for the canonical stack optional bupropion
Duloxetine (moderate CYP2D6 inhibitor) Blocks endoxifen formation Moderate Avoid or consider alternative
Quinidine, terbinafine, cinacalcet (moderate CYP2D6 inhibitors) Block endoxifen formation Moderate Avoid concurrent use
Warfarin Potentiates anticoagulation Major (INR rise) INR monitoring; dose adjustment
Other SERMs (raloxifene, etc.) Redundant ER antagonism Unpredictable AVOID
Aromatase inhibitors Compounded estrogen blockade Risk of E2 crash Specialist supervision only
Estrogens / OCP / HRT Mechanism conflict Defeats purpose Generally avoid
Anastrozole Combined estrogen blockade in oncology context Variable Sequential per oncology guidelines
CYP3A4 inducers (rifampin, phenytoin, carbamazepine, St. John's Wort) Reduce tamoxifen exposure Moderate May reduce efficacy
Letrozole Same class concern Variable Specialist supervision
Citalopram, escitalopram, venlafaxine, sertraline (weaker CYP2D6 effect) Minor reduction in endoxifen Modest Acceptable SSRI alternatives if SSRI required

CYP enzymes affected by tamoxifen: Tamoxifen is primarily a substrate (CYP2D6, CYP3A4) rather than potent inducer/inhibitor. Modest CYP3A4 inhibition reported but not clinically major. Drugs are largely not affected by tamoxifen PK-wise; tamoxifen PK is heavily affected by other drugs.

Hormonal contraceptives: Mechanism conflict for breast cancer indication; in male off-label use, irrelevant.

▸ Pharmacogenomics

  • CYP2D6 polymorphisms: The most clinically important PGx variable in tamoxifen.

    • Poor metabolizers (PMs) (CYP2D6 *3/*3, *4/*4, *5/*5, *6/*6, ~7-10% Caucasians, ~1-2% Asian, ~3% African): produce significantly less endoxifen; cohort studies suggest worse breast cancer outcomes; CPIC 2018/2024 guidelines suggest considering AI alternatives in postmenopausal women.
    • Intermediate metabolizers (IMs) (~40% Caucasians): partially reduced endoxifen; clinical impact debated.
    • Extensive metabolizers (EMs) (~50% Caucasians): normal endoxifen production.
    • Ultrarapid metabolizers (UMs) (CYP2D6 *1/*1xN duplications, ~1-3% Caucasians, higher in some Mediterranean / North African populations): elevated endoxifen, possibly enhanced efficacy and side effect risk.
    • Phenoconversion by CYP2D6 inhibitor co-medications (paroxetine, fluoxetine, bupropion) effectively converts EM → IM/PM, blunting efficacy.
    • the user's 23andMe (~June 2026) will have CYP2D6 calls (also relevant for modafinil and codeine PK — clinically more important for him than for tamoxifen specifically).

  • CYP3A4 / CYP3A5 polymorphisms: Affect tamoxifen → N-desmethyltamoxifen formation. Less critical than CYP2D6.

  • CYP2C9, CYP2C19 polymorphisms: Minor metabolic pathways. Limited clinical impact.

  • UGT1A4, UGT2B15 polymorphisms: Affect Phase II glucuronidation of tamoxifen and metabolites. Variable clinical significance.

  • ESR1 (estrogen receptor α) polymorphisms: Modulate breast tissue responsiveness; specific tamoxifen PGx data is more developed than for raloxifene. ESR1 PvuII / XbaI variants associated with response variability.

  • Practical note for users in this archetype: None applicable — he's not using tamoxifen. If ever indicated, 23andMe CYP2D6 calls would inform endoxifen exposure prediction. For male PCT (short-duration) use, CYP2D6 status matters less than for years-long breast cancer adjuvant therapy.

▸ Sourcing deep dive
Path Vendor Cost Reliability Notes
US Rx generic CVS, Walgreens, Costco, Walmart, mail-order $10-30/mo (20 mg #30, generic tamoxifen citrate) HIGH Cheap generic; requires Rx. On-label use easy via oncologist; off-label male PCT or gyno requires sympathetic prescriber (urology, men's health, endocrinology).
US Rx via telehealth Various men's health telehealth (less common than for enclomiphene) $30-80/mo + telehealth fee HIGH Less common in telehealth than enclomiphene; some providers prescribe for documented gyno workup.
Indian pharmacy Inhouse Pharmacy, Rx Connected, AllDayChemist $10-25/mo (Indian generic tamoxifen citrate, e.g., Genox, Tamodex) MEDIUM-HIGH Standard generic SERM availability; same channels the user already uses for modafinil. OTC in India.
Canadian pharmacy Various $20-40/mo MEDIUM-HIGH Standard generic.
AAS gray-market sources Various PED suppliers $20-50 / 30 ml liquid "Nolvadex" or 30 tabs LOW-MEDIUM "Research grade" tamoxifen citrate liquid or tabs; quality variable; widely used in PED community. Less needed since Indian pharmacy generic is cheap.
Research-chem vendors Various ("research grade" tamoxifen citrate powder or liquid) $20-40 / 30g powder or 30ml liquid LOW-MEDIUM "For research use only" labeling; quality variable; mostly used in AAS community.

For the user: sourcing is trivially easy if ever indicated — Indian pharmacy with same channels he already uses. Per-dose cost would be lower than most current V4 components. The blocker is indication, not sourcing.

▸ Biomarkers to track (deep)

Baseline

  • CBC w/ platelet count — VTE risk baseline
  • Lipid panel (LDL, HDL, triglycerides) — modest expected LDL reduction
  • CMP (LFTs, kidney function) — baseline; rare hepatotoxicity
  • Total T, free T, SHBG, estradiol (sensitive E2 assay), LH, FSH, prolactin — hormone baseline (the user: gets these June 2026 anyway)
  • Mammogram if female with breast cancer risk (irrelevant for users in this archetype)
  • Pelvic ultrasound / endometrial assessment if postmenopausal woman starting chronic therapy (irrelevant for users in this archetype)
  • Ophthalmologic exam if planning long-term (>1 year) use — cataract / retinopathy baseline
  • CYP2D6 genotype if available (the user: 23andMe ~June 2026)
  • Family history thrombophilia screening — if any signal, consider Factor V Leiden, prothrombin gene mutation testing before starting

During use

  • Hormone panel at 4 and 12 weeks — total T, free T, E2 (men: assess shift), LH, FSH
  • Lipid panel at 12 weeks
  • CBC at 4 and 12 weeks — VTE surveillance baseline
  • LFTs at 12 weeks
  • Symptom monitoring: unilateral leg swelling/pain (DVT), chest pain / dyspnea / hemoptysis (PE), visual changes, libido changes, mood, hot flushes, joint pain
  • For gyno indication: physical exam + breast tissue measurement at 4/8/12 weeks — track regression
  • Annual ophthalmology for long-term use
  • For breast cancer adjuvant in women: gynecologic exam, endometrial surveillance per oncology guidelines — irrelevant for users in this archetype

Post-discontinuation

  • None routinely required for short male use cases (PCT or gyno) — endoxifen washout takes 4-8 weeks.
  • For gyno indication: continue monitoring breast tissue; relapse possible if underlying estrogen exposure continues.
  • For PCT: confirm HPG axis recovery via T, LH, FSH at 4-8 weeks post-discontinuation.
▸ Controversies / open debates Live debate

1. CYP2D6 genotyping for tamoxifen — clinically actionable or not?

The claim: CYP2D6 PMs have worse breast cancer outcomes on tamoxifen due to reduced endoxifen formation; therefore preemptive genotyping should guide therapy choice (alternative endocrine therapy in PMs).

Reality check: Multiple retrospective cohort studies signal worse outcomes in PMs (Goetz 2005, Schroth 2009, Kiyotani 2010). Two large prospective re-analyses (BIG 1-98, ATAC) failed to confirm the signal. CPIC 2018/2024 guidelines suggest considering AI alternatives in postmenopausal CYP2D6 PMs but do not mandate routine genotyping. Current clinical practice: most oncologists do not routinely test CYP2D6 before tamoxifen. Some major cancer centers do test selectively. Verdict: pharmacogenomic effect is real but magnitude in real-world outcomes is debated.

For the user: irrelevant clinically (no indication), but his 23andMe CYP2D6 calls will be informative for modafinil and codeine more than tamoxifen.

2. Tamoxifen vs. raloxifene for male gynecomastia

The community consensus (raloxifene > tamoxifen for cosmetic male gyno per Lawrence 2004 + bodybuilding forum lore) is shaky evidentially — see raloxifene.md controversy section. Tamoxifen has the longer track record, more total male-use experience, and more pubertal-gyno trial data. Both work mechanistically. Real choice often comes down to: which is sourceable / which has a sympathetic prescriber / which side-effect profile the user wants. Raloxifene anecdotally cleaner subjective profile, tamoxifen cheaper and more evidenced. My read: equally reasonable first choices for male gyno; tamoxifen is the historical default and somewhat more evidenced.

3. Tamoxifen vs. enclomiphene for male PCT / hypogonadism

Tamoxifen is the historical standard PCT agent (alongside clomiphene). Enclomiphene (the cleaner, trans-isomer-only clomiphene) is the modern preference: cleaner subjective profile, no breast estrogen agonism dimension, more selective hypothalamic action. For pure HPG-axis restoration without need for breast antagonism, enclomiphene wins. Tamoxifen retains its role in PCT contexts where gyno protection is also desired (concurrent breast antagonism is a feature, not a bug). For the user: moot (no AAS use), but worth knowing the modern landscape.

4. Long-term safety in young off-label male users (years)

Most male tamoxifen experience is short-duration (4-6 weeks PCT, 3-6 months gyno treatment). Years-long off-label male use is essentially uncharacterized. Bone effects likely beneficial (bone agonism); HPG-axis chronic perturbation unclear; CV/lipid effects likely neutral-to-beneficial; VTE risk persists; cataract risk accumulates. Relevant to AAS users running long blast-and-cruise cycles with chronic SERM coverage; not a the user concern.

5. Tamoxifen + bupropion — archetype-specific flag

Bupropion is a moderate-strong CYP2D6 inhibitor and would significantly reduce tamoxifen → endoxifen conversion. the canonical stack plan includes optional bupropion 150 mg if mood/motivation insufficient post-modafinil onboarding. While he is not on tamoxifen and very unlikely to be, this is a flag for any future scenario where both might be considered. (For someone needing bupropion AND a SERM, raloxifene or enclomiphene avoid the CYP2D6 issue entirely.)

6. Tumor flare and breast cancer specific

Initial week or two of tamoxifen for active breast cancer can produce paradoxical pain/symptom worsening (tumor flare) — clinically relevant only for active oncology indications, not for chemoprevention or off-label male use.

▸ Verdict change log
  • 2026-05-04 (Encyclopedia v5) — listed in skip-at-20 hormonal section: "SERM, FDA-approved breast cancer treatment + chemoprevention. PCT use in AAS context. Not relevant for users in this archetype absent breast cancer or AAS."
  • 2026-05-06 (this file, full research pass) — NOT-RELEVANT, HIGH confidence. Comprehensive verdict: a user in this archetype has zero indication (no breast cancer, no BRCA, no AAS use, no gynecomastia, no fertility issue, no documented hypogonadism, intact HPG axis at peak natural function). Off-label exploration would impose real harm (VTE risk, mood/libido suppression, visual side effects, cataract risk on long-term, CYP2D6-genotype-dependent unpredictable exposure) without compensating benefit. Documented because the AAS/PCT and male-gyno literatures funnel through tamoxifen as the historical first-line SERM and users searching that space reach this file. Verdict shifts to STRONG-CANDIDATE only if a user in this archetype develops AAS-induced or severe idiopathic gynecomastia (essentially zero probability given current profile), or pursues an AAS cycle requiring PCT (not on roadmap). Bupropion + tamoxifen interaction flagged as future-relevance note for V5 bupropion option.
▸ Open questions / gaps Open
  1. Long-term (>5 years) off-label male use safety: Uncharacterized. Bone, CV, lipid, libido, HPG-axis, ophthalmologic effects of multi-year male use are not formally studied.
  2. Tamoxifen vs. raloxifene head-to-head for AAS-induced male gyno: No RCT exists. Community preference for raloxifene rests on weak evidence; tamoxifen has longer track record and more pubertal-gyno data.
  3. Optimal PCT duration and dose: 20-40 mg/day × 4-6 weeks is community convention, not RCT-validated. Whether shorter or longer regimens are optimal post-AAS is unstudied formally.
  4. CYP2D6 PGx clinical utility — preemptive genotyping: Real biological effect but real-world outcome impact debated; CPIC suggests but does not mandate.
  5. Endoxifen as direct therapy: A few trials of direct endoxifen administration (bypassing CYP2D6 conversion) have been explored to address the CYP2D6 PM problem; not currently FDA-approved.
  6. Tamoxifen + modern SSRIs: The clinical practice of avoiding paroxetine/fluoxetine in tamoxifen patients is well-established; whether sertraline / citalopram / escitalopram are truly safer (vs. just less-studied) is debated.
  7. Pharmacogenomic responder phenotyping (ESR1, UGT, additional CYPs): Identified mechanistic candidates, not validated clinical pharmacogenomic guidance beyond CYP2D6.
  8. Tamoxifen retinopathy mechanism and reversibility: Crystalline retinal deposits can persist post-discontinuation; full reversibility unclear.

References

NSABP B-14 — Fisher et al. 1989, 2001 (J Natl Cancer Inst)

pubmed.ncbi.nlm.nih.gov · 1989

pivotal adjuvant breast cancer trial

View Study

NSABP P-1 / BCPT — Fisher et al. 1998 (J Natl Cancer Inst / NEJM)

pubmed.ncbi.nlm.nih.gov · 1998

chemoprevention pivotal trial

View Study

STAR trial — Vogel et al. 2006 (JAMA)

jamanetwork.com · 2006

head-to-head tamoxifen vs. raloxifene

View Study

ATLAS trial — Davies et al. 2013 (Lancet)

pubmed.ncbi.nlm.nih.gov · 2013

10 vs. 5 years adjuvant tamoxifen

View Study

EBCTCG meta-analysis — Davies et al. 2011 (Lancet)

pubmed.ncbi.nlm.nih.gov · 2011

pooled adjuvant tamoxifen data

View Study

Nolvadex (tamoxifen citrate) FDA prescribing information

accessdata.fda.gov

official FDA label

View Source

aTTom trial — Gray et al. 2013 (J Clin Oncol abstract)

ascopubs.org · 2013

extended tamoxifen

View Source

Wiehle 2014 — Enclomiphene Citrate (Journal of Men's Health)

liebertpub.com · 2014

comparator with tamoxifen background

View Source

Khan & Hanna 2017 — Gynecomastia: a review (StatPearls / current handbook)

ncbi.nlm.nih.gov · 2017

current clinical handbook entry

View Source

CPIC Guideline for CYP2D6 and Tamoxifen (2018, 2024 update)

cpicpgx.org · 2018

clinical pharmacogenomic guidance

View Source

How was your experience with this compound?

Anonymous · one vote per session · results below at 5+ votes.

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