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Real members of MyBCTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.

Femara

A MyBCTeam Member asked a question 💭
White Rock, BC

Can I take a multi vitamin while on letrozole I’m 67 had a lumpectomy. Have been using letroze for a month and start my radiation in a couple of weeks.

June 6, 2024
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A MyBCTeam Member

I never ask my doctor to take vitamins. I told her I was taking 5000 IU of D3 with K2 because for the first 4 months on Anastrozole she only had me on 600 IU and I had a HYDROXY blood test that came out bad, very low D in my bones so after reading about high dose D3 here on Feb 14 I started taking it and told her . She said it was fine.

June 6, 2024
A MyBCTeam Member

My cancer pharmacist said it’s ok to take multivitamins along with vitamin D3 and Calcium. But cautioned me against any other supplements unless these are pre approved by my medical oncology team.

June 6, 2024
MyBCTeam

Femara (Letrozole) is a prescription drug approved by the U.S. Food and Drug Administration (FDA) to treat estrogen receptor-positive breast cancer in postmenopausal women. Here are some key points about Femara:

### Uses
- Adjuvant Treatment: Used post-surgery to reduce the risk of breast cancer recurrence.
- Advanced Show Full Answer

Femara (Letrozole) is a prescription drug approved by the U.S. Food and Drug Administration (FDA) to treat estrogen receptor-positive breast cancer in postmenopausal women. Here are some key points about Femara:

### Uses:
- Adjuvant Treatment: Used post-surgery to reduce the risk of breast cancer recurrence.
- Advanced Breast Cancer: Also used for treating advanced stages of breast cancer.

### Mechanism:
- Nonsteroidal Aromatase Inhibitor: Blocks the enzyme that helps produce estrogen, thereby reducing estrogen levels in the body and slowing the growth of estrogen receptor-positive breast cancer.

### Administration:
- Oral Pill: Taken once a day.
- Monitoring: Regular tests may be ordered by your doctor to monitor cholesterol, liver function, and bone density.

### Side Effects:
- Common: Hot flashes, joint pain, flushing, weakness, swelling of the legs and feet, headache, dizziness, high cholesterol, increased sweating, and musculoskeletal pain.
- Osteoporosis: A common side effect that can contribute to fractures.
- Serious: Rare but serious side effects include heart attacks, strokes, liver problems, and skin reactions such as blisters, ulcers, or lesions. Immediate medical attention is required for symptoms like chest pain, numbness or weakness on one side of the body, sensations of warmth, pain or heaviness in the legs or groin, slurred speech, vision problems, or liver symptoms such as jaundice, pain or swelling in the abdomen, or general feelings of unwellness.

For more detailed information, you can visit the [Femara page on MyBCTeam](https://www.mybcteam.com/treatments/femara).

June 6, 2024
A MyBCTeam Member

I do take vit K2 mk-4 along with the vit D3

June 6, 2024