くすりのしおり

Internal
Revised: 11/2011

The information on this sheet is based on approvals granted by the Japanese regulatory authority. Approval details may vary by country. Medicines have adverse reactions (risks) as well as efficacies (benefits). It is important to minimize adverse reactions and maximize efficacy. To obtain a better therapeutic response, patients should understand their medication and cooperate with the treatment.
Brand name :
TAMOXIFEN Tablets 20mg "SAWAI"
 Active ingredient:
Tamoxifen citrate
 Dosage form:
white tablet, diameter : 10.1 mm, thickness : 4.4 mm
 Print on wrapping:
タモキシフェン, 20 mg「サワイ」, SW-297, Tamoxifen 20

Effects of this medicine

This medicine acts on estrogen receptor of breast cancer cells to suppress female hormone actions and proliferation of cancer cells.
It is usually used to treat breast cancer.

Before using this medicine, be sure to tell your doctor and pharmacist

  • If you have previously experienced any allergic reactions (itch, rash, etc.) to any medicines.
  • If you are pregnant or breastfeeding.
  • If you are taking any other medicinal products. (Some medicines may interact to enhance or diminish medicinal effects. Beware of over-the-counter medicines and dietary supplements as well as other prescription medicines.)

Dosing schedule (How to take this medicine)

  • Your dosing schedule prescribed by your doctor is ((        to be written by a healthcare professional))
  • In general, for adults, take 20 mg of tamoxifen, in 1 to 2 divided doses a day. The dosage may be increased according to the symptoms. However, The maximum daily dose is 40 mg. This preparation contains 20 mg of tamoxifen in a tablet. Strictly follow the instructions.
  • If you miss a dose, take the missed dose as soon as possible. However, if it is almost time for the next dose, skip the missed dose. You should never take two doses at one time.
  • If you accidentally take more than your prescribed dose, consult with your doctor or pharmacist.
  • Do not stop taking this medicine unless your doctor instructs you to do so.

Precautions while taking this medicine

  • While taking this medicine, prevent pregnancy by using nonhormonal forms of contraception.

Possible adverse reactions to this medicine

The most commonly reported adverse reactions include amenorrhea, menstruation disorder, genital bleeding, vaginal discharge, nausea/vomiting, loss of appetite, diarrhea, abdominal pain, headache, dizziness, rash, sweating, loss of hair, hot flush/flush, increased body weight and edema. If any of these symptoms occur, consult with your doctor or pharmacist.
The symptoms described below are rarely seen as initial symptoms of the adverse reactions indicated in brackets. If any of these symptoms occur, stop taking this medicine and see your doctor immediately.
  • sore throat, fever, anemia [agranulocytosis, decreased white blood cell, decreased neutrophil cell, anemia, decreased platelets]
  • reduced visual acuity, foggy vision [visual abnormality, vision disorder]
  • regional pain, tenderness, erythema [thromboembolism, phlebitis]
  • general malaise, loss of appetite, yellow discoloration of the skin and the white of eyes [fulminant hepatitis, hepatitis, cholestasis, liver failure]
  • genital bleeding, menstruation disorder (hypermenorrhea, lower abdominal/low back pain, etc.), irregular menstruation [uterine myoma, endometrial polyp, endometrial hyperplasia, endometriosis]
The above symptoms do not describe all the adverse reactions to this medicine. Consult with your doctor or pharmacist if you notice any symptoms of concern other than those listed above.

Storage conditions and other information

  • Keep out of the reach of children. Store away from light, heat and moisture.
  • Discard the remainder. Do not store them.

For healthcare professional use only : Day Month Year

For further information, talk to your doctor or pharmacist.

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