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Tamilong 20mg (Tamoxifen)

Tamilong 20mg (Tamoxifen)x30 30 $0.9 $27.00
Tamilong 20mg (Tamoxifen)x60 60 $0.75 $45.00
Tamilong 20mg (Tamoxifen)x90 90 $0.65 $58.50
Tamilong 20mg (Tamoxifen)x180 180 $0.45 $81.00
Tamilong 20mg (Tamoxifen)x360 360 $0.35 $126.00

Product Information

Tamilong 20 contains 20mg of the active ingredient Tamoxifen citrate. Tamoxifen belongs to a class of drugs called selective estrogen receptor modulators (SERMs) which possess both estrogenic and anti-estrogenic effects.

Tamoxifen is used for the treatment of estrogen receptor-positive breast cancer which has spread to other parts of the body in women and in men. It is also used to treat early stages of breast cancer in women who have received treatments via surgery, radiation and chemotherapy. Tamoxifen reduces the risk of a more serious type of breast cancer in women who received other forms of treatment and those who have ductal carcinoma in situ. This drug also used as prevention, reducing the risk of developing breast cancer in women who are at high risk due to family medical history, age, and personal medical history. This drug may be used to treat other medical conditions not stated above.

Tamoxifen works by binding to estrogen receptors and blocks the estrogen’s proliferative effects on breast tissues, stopping the growth of breast tumours that require estrogen.


Tamilong 20 is manufactured by HAB Pharmaceuticals and Research Ltd.


Patients with known allergy to the active ingredient and any of the inactive ingredients of Tamilong, must not take this medication.

Pregnant women must not take this medication as it may harm an unborn baby. Getting pregnant must be prevented while on Tamoxifen therapy. Using of non-hormonal birth control such as condom or diaphragm is recommended while taking this medication and at least 2 months after drug therapy.

Tamilong is also contraindicated to women taking coumarin-type anticoagulant therapy such as Warfarin and in women with a history of blood clots in veins or lungs.

Warnings and Precautions

Inform a physician of any of the following to know if the drug is safe to take:

  • history of stroke or blood clot
  • liver disease
  • high cholesterol or triglycerides
  • history of cataracts
  • diabetes
  • high blood pressure
  • limited or inability to walk
  • on a chemotherapy or radiation therapy
  • pregnant or planning to get pregnant

Tamoxifen may increase the risk of other cancers like uterine cancer or liver cancer. It may also increase the risk of stroke and blood clot in the lungs which can be fatal.

Tamoxifen may interact with other medications, vitamins, and herbal supplements. Inform a physician of any of the following medications being taken or planning to take:

  • aminoglutethimide
  • anastrozole
  • bromocriptine
  • cancer chemotherapy medication like cyclophosphamide
  • letrozole
  • medroxyprogesterone
  • phenobarbital
  • rifampin
  • coumarin-type anticoagulants

It is unknown whether Tamoxifen can harm a nursing baby or if drug is excreted in breast milk. It is however recommended that breastfeeding must be avoided while taking this medication. This drug can slow down production of breast milk.

Tamilong and Alcohol

Concomitant use of alcohol and Tamoxifen is not recommended. Drinking alcohol while taking Tamoxifen (Tamilong) may increase the risk of side effects such as dizziness, drowsiness and increased risk of heart attack and stroke.


Dosage requirement varies per patient. Before taking this medication, patients must first consult a healthcare provider to get the right dosage requirement. Once prescribed by a doctor, a patient must strictly follow the dosage.

The usual adult doses of Tamilong 20 for breast cancer are as follows:

In treating metastatic breast cancer in women and men

  • 20mg to 40mg daily

In treating Ductal Carcinoma in Situ in women following breast surgery and radiation

  • 20mg once a day for 5 years

In reducing the risk of breast cancer in high-risk women

  • 20mg once a day for 5 years

If Tamilong is to be used to reduce the risk of breast cancer, the first dose may need to be taken while having menstrual period. A physician will decide on the duration of therapy of Tamilong in treating breast cancer.

Tamilong tablet is taken orally, swallowed whole with a glassful of water. The tablet may be taken with or without food. Doses higher than 20mg should be given in divided doses, usually divided in half and taken twice daily.

This drug is best taken regularly, around the same time each day and strictly follow the physician’s instructions to get optimum benefit from it. Regular physical exams, self-examination and mammograms are recommended for it is possible to develop breast cancer while taking this medication.

Take a missed dose as soon as remembered. Skip the missed dose if it’s almost time for the next dose. Never double the dose just to make up for the missed one.

Side effects

The use of Tamilong may cause side effects such as nausea, headache, hot flashes, leg cramps, hair thinning, weight loss, vaginal discharge, and numbing or tingling of skin. Loss of sexual interest or ability in men has been reported upon discontinuation of therapy.

A physician must be notified of any of the following serious side effects:

  • vision changes
  • eye pain
  • unusual bruising or bleeding
  • fever
  • mental or mood changes
  • changes in menstrual period
  • unusual vaginal discharge or bleeding
  • pain or pressure in the pelvic area
  • new breast lump
  • signs of high calcium blood levels – vomiting, constipation, increased thirst and urination, muscle weakness, unusual tiredness, bone pain, confusion
  • signs of liver problems – upper stomach pain, appetite loss, dark urine, clay-colored stools, jaundice (yellowing of eyes or skin)

Stop taking Tamilong and seek medical help immediately if a serious allergic reaction to the drug occurs. Symptoms include rash, itching, swelling of face, tongue and throat, breathing difficulty and severe dizziness.

If this drug is taken for the treatment of metastasized breast cancer, increased bone/cancer pain or disease flare-up can occur. This however may be a sign of a good tumor response to the medication. Notify a physician for these occurrences.

Consult a physician for a complete information on Tamilong side effects.

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