Tamoxifen Citrate (Nolvadex) 20mg is the gold standard Selective Estrogen Receptor Modulator (SERM) for Post Cycle Therapy. It works by blocking oestrogen at the pituitary gland, which removes the negative feedback loop suppressing LH and FSH production. Clinical data shows Tamoxifen increases LH levels by 150-200% within the first 2 weeks of administration, making it the fastest and most reliable compound for restarting natural testosterone production after a steroid cycle.
Why You Need This
Every anabolic steroid cycle suppresses natural testosterone by 94-100% within the first 3 weeks. When you stop the cycle, your body has no exogenous testosterone coming in and no natural production to fall back on. Without PCT, this hormonal void lasts 3-6 months, during which you lose the muscle you built, gain body fat (especially abdominal), and experience fatigue, brain fog, low libido, erectile dysfunction, and mood disruption. Nolvadex shortens this recovery window to 4-6 weeks, protecting your gains and quality of life.
How Tamoxifen Works
Tamoxifen is a SERM, not an aromatase inhibitor. It does not reduce oestrogen levels; instead, it blocks oestrogen from binding to receptors at the pituitary gland and breast tissue. At the pituitary, this blockade tricks the gland into thinking oestrogen is low, triggering it to release more LH and FSH. These hormones then signal the Leydig cells in the testes to resume testosterone production. At breast tissue, the same receptor blockade prevents gynecomastia, which is why Nolvadex is also used as an emergency intervention for gyno flare-ups during a cycle.
PCT Protocols
- Standard PCT (after Testosterone, Dianabol, most compounds): 40mg/day for weeks 1-2, then 20mg/day for weeks 3-4
- Enhanced PCT (after Deca, Tren, or long/heavy cycles): 40mg/day for weeks 1-2, 20mg/day for weeks 3-4, optionally 10mg/day for weeks 5-6
- Gynecomastia flare-up (during cycle): 20-40mg/day until symptoms subside, then resume AI protocol
When to Start PCT
- After Testosterone Enanthate/Cypionate: 14 days after last injection
- After Testosterone Propionate: 3 days after last injection
- After Nandrolone Decanoate (Deca): 21 days after last injection
- After oral-only cycles (Anavar, Dianabol, Winstrol): the day after your last dose
- After Sustanon 250: 18-21 days after last injection
Nolvadex vs Clomid
- Nolvadex (this product): more targeted, fewer side effects, better tolerated by most users. The preferred first-choice PCT SERM
- Clomid: stimulates both LH and FSH more aggressively but carries more side effects (vision disturbances, emotional mood swings). Typically reserved for heavier suppression
- Both together: some protocols use both simultaneously for maximum recovery after very heavy cycles. Not needed for standard cycles
Key Facts
- Active ingredient: Tamoxifen Citrate 20mg per tablet
- Class: Selective Estrogen Receptor Modulator (SERM)
- Half-life: 5-7 days (allows once-daily dosing)
- Not an aromatase inhibitor. Does not reduce oestrogen levels. Blocks oestrogen at receptor sites
- Also used for: emergency gynecomastia intervention during cycle
Read our full Post Cycle Therapy Guide for complete protocols including HCG pre-loading. Browse all PCT products. First cycle? See our Beginner’s Guide.
Testosterone Enanthate 300mg (Test E) – Med Tech Solutions 


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