Tamoxifen belongs to a group of medicines known as anti-oestrogens. Tamoxifen is used to treat breast cancer.
Like all medicines Tamoxifen Tablets can cause side effects, although not everybody gets them.
Occasionally, a few people can suffer from stomach or gut upsets, headaches, light-headedness,
menstrual disturbances, hot flushes, genital itching, vaginal discharge or bleeding, fluid retention,
hypertriglyceridemia (increased levels of fat in your blood) sometimes with pancreatitis (pain or
tenderness in your upper abdomen), skin rashes or itching or peeling skin, thinning of the hair, or
inflammation of the lungs (which may present with the same symptoms as pneumonia, such as
breathlessness and cough).
Other possible events are changes in vision or difficulty seeing properly as a result of cataracts or
changes to the cornea or retina, an increased risk of blood clots, a tendency to bruise more easily,
ovarian cycts or certain liver problems such as jaundice. Other possible events are effects on the
endometrium (lining of the womb) which may also be seen as discomfort in the pelvis or as vaginal
bleeding. It is important that you tell your doctor immediately if you have any unusual vaginal bleeding, menstrual irregularities, vaginal discharge or discomfort in the pelvis such as pain or pressure when you are taking tamoxifen or any time afterwards. This is because a number of changes to the lining of the womb (the endometrium) may occur, some of which may be serious and could include cancer. At the beginning of treatment for breast cancer, the symptoms of the disease can sometimes get worse, for example an increase in pain or an increase in the size of the affected tissue. In addition, if you get excessive nausea, vomiting or thirst, tell your doctor because this may mean that there are changes in the amount of calcium in your blood and your doctor may want to check this. Do not be alarmed by this list of possible events. You may not have any of them.
If you get any other undesirable effects or if you think your medicine is causing any problems, tell your doctor or pharmacist
STOP TAKING Tamoxifen 10mg Tablets and contact your doctor immediately in any of the following situations:
If you develop difficulty in breathing with or without swelling of the face, lips, tongue and/or throat.
If you develop swelling of the face, lips, tongue and/or throat which may cause difficulty swallowing.
If you develop swelling of the hands, feet or ankles.
If you develop urticaria ('nettle rash' or 'hives')