Package: 100 tabs (20mg/tab)

Active Substance: Tamoxifen Citrate

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Tamoxifen, known by its generic name Tamoxifen Citrate and produced by Genetic Pharmaceuticals, is an oral medication primarily used to treat and prevent breast cancer. It is a selective estrogen receptor modulator (SERM) that blocks the effects of estrogen in breast tissue, making it effective for hormone receptor-positive breast cancer. Tamoxifen is also commonly used as a testosterone booster for post cycle therapy (PCT) in the bodybuilding community. During PCT, it helps restore natural testosterone production and prevents estrogen-related side effects after a cycle of anabolic steroids.


Tamoxifen is not suitable for everyone. It is contraindicated in individuals with a known hypersensitivity to Tamoxifen or any of its ingredients. Women who are pregnant or breastfeeding should not use Tamoxifen due to potential harm to the fetus or nursing infant. It is also not recommended for people with a history of blood clots or deep vein thrombosis, as Tamoxifen can increase the risk of these conditions. Patients with liver disease should use Tamoxifen with caution, as it can affect liver function.


Tamoxifen is taken orally, usually in tablet form. The dosage and duration of treatment depend on the specific condition being treated. For breast cancer treatment and prevention, the typical dosage ranges from 20 to 40 mg per day, taken in divided doses if needed. When used for post cycle therapy in bodybuilding, the dosage usually starts at 20 to 40 mg per day for the first two weeks, then decreases to 10 to 20 mg per day for another two to four weeks. It is important to follow the prescribed dosage and not to exceed the recommended amount.

Medical Action

Tamoxifen works by binding to estrogen receptors in breast tissue, blocking estrogen’s ability to stimulate the growth of breast cancer cells. This action helps prevent the recurrence of breast cancer and the growth of new cancer cells. In the context of post cycle therapy, Tamoxifen’s role as a SERM helps stimulate the hypothalamus and pituitary gland to release hormones that signal the testes to produce more testosterone. This process helps restore natural testosterone levels and maintain muscle mass and strength gained during a steroid cycle.


Before taking Tamoxifen, it is important to discuss your medical history with your healthcare provider. This includes any history of blood clots, stroke, liver disease, high cholesterol, or cataracts. Regular monitoring of liver function and blood clotting parameters may be necessary while using Tamoxifen. Avoid using Tamoxifen if you are pregnant or planning to become pregnant, as it can cause harm to the unborn baby. Women of childbearing age should use effective non-hormonal contraception while taking Tamoxifen. It is also important to inform your doctor about all medications and supplements you are taking to avoid potential interactions.

Side Effects

Like all medications, Tamoxifen can cause side effects. Common side effects include hot flashes, night sweats, vaginal discharge or bleeding, and menstrual irregularities. Some individuals may experience nausea, fatigue, and headaches. More serious side effects include an increased risk of blood clots, stroke, and endometrial cancer. If you experience symptoms such as chest pain, shortness of breath, vision changes, or unusual bleeding, seek immediate medical attention. In the context of post cycle therapy, Tamoxifen can sometimes cause mood swings and changes in libido.


Overdosage of Tamoxifen can lead to severe health complications. Symptoms of overdose may include dizziness, tremors, unsteady gait, and difficulty breathing. In case of an overdose, it is important to seek immediate medical attention. Do not exceed the prescribed dose of Tamoxifen, as this can increase the risk of serious side effects and complications.


Tamoxifen Citrate, commonly known as Tamoxifen and produced by Genetic Pharmaceuticals, is a versatile oral medication used to treat and prevent breast cancer. It also plays a crucial role in post cycle therapy for bodybuilders, helping to restore natural testosterone production and prevent estrogen-related side effects after a cycle of anabolic steroids. While Tamoxifen offers significant benefits, it is essential to use it responsibly and under the guidance of a healthcare provider. By following the prescribed dosage, taking necessary precautions, and being aware of potential side effects, you can safely benefit from Tamoxifen and improve your overall health and well-being. Always consult with your healthcare provider before starting any new medication to ensure it is appropriate for your specific health needs.


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