Along with its needing effects, a drug may cause some unwanted effects. Some side effects will have signs or symptoms that you can see or feel. Your family doctor will watch for others by doing certain tests.
Always because of the way this drug acts on the body, there is a risk that it might cause other unwanted effects that may not occur until months or years after the drug is using. Tamoxifen increases the risk of cancer of the uterus - womb in some women taking it. Tamoxifen may cause blockages to form in a vein, lung, or brain. In women, tamoxifen may cause cancer or other problems of the uterus - womb. It also causes liver cancer in rats. In addition, tamoxifen has been reported to cause cataracts and other eye problems. Discuss these possible effects with your family doctor.
Check with your family doctor as soon as possible if any of the following side effects was happen
For both females and males
Less common or rare
Anxiety; blistering, peeling, or loosening of skin and mucous membranes; blurred vision; chest pain; confusion; cough; dizziness; fainting; fast heartbeat; lightheadedness; pain or swelling in legs; shortness of breath or trouble breathing; weakness or sleepiness; yellow eyes or skin
For females only
Less common or rare
Change in vaginal discharge; chills; fever; hoarseness; lower back or side pain; pain or feeling of pressure in pelvis; pain, redness, or swelling in your arm or leg; painful or difficult urination; rapid shallow breathing; skin rash or itching over the entire body; sweating; vaginal bleeding; wheezing
For females and males
Frequency not determined
Bloating; constipation; darkened urine; diarrhea; difficult breathing; indigestion; itching; joint or muscle pain; large, hard skin blisters; large hive-like swelling on face, eyelids, lips, tongue, throat, hands, legs, feet and sex organs; loss of appetite; nausea; pain in stomach or side, possibly radiating to the back; red, irritated eyes; red skin lesions, often with a purple center; sore throat; sores, ulcers or white spots in mouth or on lips; unusual tiredness or weakness; vomiting
This drug may also cause the following side effect that your family doctor will watch for:
For both females and males
Less common or rare
Cataracts in the eyes or other eye problems; liver problems
More common side effects may occur that usually do not need medical attention. These side effects may go away during treat as your body adjusts to the drug. Always your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
For both females and males
Less common
Bone pain; headache; nausea andvomiting - mild; skin rash or dryness
For females only
More common
Absent, missed, or irregular periods; confusion; decrease in amount of urine; feeling of warmth redness of the face, neck, arms and occasionally, upper chest; lower back or side pain; menstrual changes; nausea; noisy, rattling breathing; painful or difficult urination; rapid, shallow breathing; skin changes; stopping of menstrual bleeding; swelling of fingers, hands, feet, or lower legs; troubled breathing at rest; vaginal bleeding; weight gain; weight loss; white or brownish vaginal discharge
Less common or rare
Abdominal cramps; black, tarry stools; bleeding gums; blood in urine or stools; Bluish color changes in skin color; discouragement; feeling sad or empty; irritability; itching in genital area; lack of appetite; loss of interest or pleasure; pain; pinpoint red spots on skin; stomach or pelvic discomfort, aching or heaviness; swelling; trouble concentrating; trouble sleeping; unusual bleeding or bruising
For males only
Less common
decreased interest in sexual intercourse; inability to have or keep an erection; loss in sexual ability, desire, drive, or performance
This drug may infrequently cause hair thinning or partial loss of hair.
More common side effects not listed above may also occur in some diseaseds. If you have any other problems, check with your family doctor.