Tamoxilon 20 Mg Tablet

Tamoxilon 20 mg is an oral tablet that contains tamoxifen citrate and is one of the most studied and therapeutically proven anti-cancer drugs in modern oncology. It is a selective estrogen receptor modulator (SERM) with a particular role in breast cancer treatment. It is neither a chemotherapeutic agent nor a hormone but a chemical that acts by selectively limiting the capacity of estrogen to induce the proliferation of estrogen-dependent breast cancer cells. 

Key Features

How Does Tamoxilon 20 mg Work?

Tamoxilon 20 mg is a non-steroidal anti-estrogen drug which basically has tamoxifen citrate as the active ingredient. It works by blocking estrogen from binding to the estrogen receptor in breast tissue. Many breast tumors are estrogen receptor positive cancers, meaning they rely on estrogen to drive their growth and proliferation. Tamoxifen attaches itself to these receptors and blocks estrogen from attaching to them. This basically cuts off the hormonal signal that causes cancer cells to proliferate, thereby delaying or stopping the disease at its hormonal root.

Compared to chemotherapy that acts on fast dividing cells throughout the body, Tamoxilon 20 mg acts with high selectivity mostly on estrogen-sensitive tissues. The effectiveness of its targeted approach is the basis for treating existing breast cancer and minimizing the chances for new tumors to arise in high-risk individuals. 

Uses

An individual may have to take Tamoxilon 20 mg in the following situations: 

• For the treatment of metastatic breast cancer in both men and women.
• Given after surgery to prevent any reoccurrence of the cancer.
• Helps protect individuals who are at higher risk of developing breast cancer.

Dosage

Any individual should speak with their healthcare provider before starting to take Tamoxilon 20 mg, but here are a couple guidelines that can be kept in mind:

• Take one Tamoxilon 20 mg tablet daily, or as your healthcare provider has advised you to. 
• Swallow the tablet whole with a glass of water. Individuals should make sure that they do not crush, split, or chew it.
• You can take Tamoxilon 20 mg with or without food
• Try to take Tamoxilon around the same time each day. 

Side Effects

Common side effects you may see are the following:

• Hot flushes
• Headaches
• Nausea
• Vomiting
• Diarrhea or constipation
• Skin rashes
• Leg cramps
• Vaginal bleeding or discharge
• Fatigue
• Anemia

Serious side effects for which you may require medical attention: 

• Endometrial cancer or other uterine tumors
• Stroke
• Cataract
• Visual disturbances
• Pancreatitis
• Endometriosis
• Liver dysfunctions

Interactions

Coumarin Blood Thinners
Tamoxilon 20 mg has a major interaction with coumarin blood thinners like warfarin and can increase their blood-thinning effect.

Anastrozole
Taking anastrozole with tamoxifen together can decrease the efficacy of anastrozole. Rather than taking them at the same time, patients are suggested to finish one course and then start another.

CYP2D6 Inhibitors
Medications that are CYP2D6 inhibitors, like antidepressants, can block the liver enzymes which break down tamoxifen and reduce its efficacy. 

Bromocriptine
Combining tamoxifen with bromocriptine can increase the levels of tamoxifen in the body, which is not recommended. 

Aminoglutethimide
Aminoglutethimide is also used for slowing down breast cancer related tumors, but pairing it with tamoxifen can reduce the latter’s concentration in the body. 

Precautions & Safety Warnings

• Tamoxifen increases thromboembolic risk. Before starting therapy, women with thromboembolic disease should be properly examined and educated about the risks and advantages.
• Tamoxifen can cause liver enzyme abnormalities and, in rare circumstances, more significant hepatic events, so complete blood counts, platelet counts, and liver function tests should be done regularly.
• Long-term tamoxifen use is linked to cataracts and other visual abnormalities, thus patients should be monitored. Vision changes should be checked immediately. 
• Pregnant women should not use tamoxifen. Childbearing women must utilize effective non-hormonal contraception during therapy and for two months afterward. 
• Tamoxifen stops women from breastfeeding, so women who are breastfeeding shouldn’t take it because it could have very bad effects on their babies. 
• In premenopausal women, Tamoxifen causes considerable lumbar spine and hip bone loss. In contrast, postmenopausal women show no bone loss from its bone-preserving function. 

Conclusion

Tamoxilon 20 mg is a pretty important pharmaceutical option for women who want to treat their estrogen receptor-positive breast cancer. Its ability to stop estrogen receptor signaling in breast tissue has made it an important part of adjuvant therapy, treatment for metastatic breast cancer, and prevention strategies for people who are at high risk. If you wish to start taking Tamoxilon, then you should have a thorough discussion with your healthcare provider and explore your options. 

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