Here are the listed side effects for Tamoxifen:
Tamoxifen side effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using tamoxifen and call your doctor at once if you have any of these serious side effects:
sudden numbness or weakness, especially on one side of the body;
sudden headache, confusion, problems with vision, speech, or balance;
chest pain, shortness of breath, or coughing up blood;
pain or swelling in one or both legs;
unusual vaginal bleeding or discharge;
irregular menstrual periods;
pain or pressure in your pelvic area;
fever, chills, body aches, flu symptoms;
pale skin, easy bruising or bleeding;
new breast lumps; or
nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).
Less serious tamoxifen side effects may include:
hot flashes, warmth or tingly feeling under your skin;
bone, joint, or tumor pain;
redness or skin changes;
swelling in your hands or feet;
vaginal itching or dryness;
depressed mood, weakness;
weight loss;
nausea;
cough, sore throat;
decreased sex drive, impotence, or difficulty having an orgasm;
headache, dizziness; or
thinning hair.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.
It lists menstrual problems, yet easy bleeding or bruising. I hope this info helps. You can find the drug info here.
Angi