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Doctor insights on: How Long After A Person Stops Taking Tamoxifen Can They Donate Blood

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Dr. Sean Canale
638 doctors shared insights

Tamoxifen (Definition)

This medication is used to: treat breast cancer that has spread to other parts of the body in men and women. Treat early breast cancer in women who have already been treated with surgery, radiation, and/or chemotherapy. Reduce the risk of developing a more serious type of breast cancer in women who have had ductal carcinoma in situ (dcis; a type of breast cancer ...Read more


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What are the long term side effects of a 55 yo man using tamoxifen? No history of blood clots, on lovaza 4g/day. I have no obvious symptoms from taking it.

What are the long term side effects of a 55 yo man using tamoxifen? No history of blood clots, on lovaza 4g/day. I have no obvious symptoms from taking it.

Hmm...off-label use?: Tamoxifen is fda-approved for use in breast cancer, most commonly in women. So all the known side effects are described for women, not men. Check out www.Epocrates.Com & www.Drugs.Com for info on any given drug, tamoxifen included. The list of potential side effects is pretty long so you want to be sure that you really need this medication and that desired benefit exceeds potential risk. ...Read more

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Should I talk with my doctor about tamoxifen if my blood work comes out high in estrogen next week and would tamoxifen reduce some very minor gyno?

Should I talk with my doctor about tamoxifen if my blood work comes out high in estrogen next week and would tamoxifen reduce some very minor gyno?

What's going on?: Why are you, a young guy, 20 years old, being tested? What's going on? Tamoxifen is only indicated in some types of breast cancers in males and females. There is no other reason for a guy to take it. Off label use has been done for ovarian cancer and female infertility. Talk to your doc about what your treatment options are, and I doubt tamoxifen will be one of them, if you don't have breast ca. ...Read more

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I have been on tamoxifen for almost five years. My ankle is very sore and a bit swollen. Am a 51 year old female. Should I be concerned of blood clot?

Yes: Tamoxifen while use in ER+ patients is an excellent anti-estrogen blocking the receptors for allowing cell proliferation acts elsewhere as an estrogen. It is known to cause blot clots in the legs of some patients and endometrial profiferation in others that can lead to endometrial Ca. You should probably have been taking some mild bold thinners and notify your physician about the swelling. ...Read more

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Just had my 4th blood test for elevated AST & ALT since 3/13. Alt 101. Ast 58. 3 yrs from breast cancer &on tamoxifen. Shd i be getting some tests?

Just had my 4th blood test for elevated AST & ALT since 3/13. Alt 101. Ast 58. 3 yrs from breast cancer &on tamoxifen. Shd i be getting some tests?

Hard to tell: ..With the info provided. Are they high but stable or are they progressively going up? What other meds you take? Any concerning symptom? In a way, you are getting tests, your doc has opted to follow up your lfts periodically. I think you need to voice your concerns to him/her so that he/she goes over this and the future plan of attack. Best to you. ...Read more

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Hello! I have had headaches for years that only seem to stop if I donate blood. Do you have any idea why this could be?

Hello! I have had headaches for years that only seem to stop if I donate blood. Do you have any idea why this could be?

Interesting and odd: There's a condition known as hemochromatosis which likely should've been detected long ago if you've ever had routine bloodwork..nevertheless, headaches SOMETIMES can be part of the symptom complex (fatigue, joint pain, discoloration of skin, hair loss/thinning). Treatment for the condition is removal of blood. Other than that I have no good organic cause for your issue. See a headache specialist ...Read more

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Can I donate blood like I used to? HPV 16 positive. Will it be detected in the blood test? Will I cause harm to others if I donate? Shall I stop it!?

Can I donate blood like I used to? HPV 16 positive. Will it be detected in the blood test? Will I cause harm to others if I donate? Shall I stop it!?

Of course: I'm concerned about you for asking, and whether there isn't some misunderstanding. You say you are 29, and have had breast cancer -- this should have been a consideration as to whether you can donate blood, rather than your HPV-16. The HPV virus will probably never be a problem and if it is, it's manageable if you comply as I understand you have done. ...Read more

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How long should I wait to exercise after giving a blood donation?

How long should I wait to exercise after giving a  blood donation?

Two days!: Minimum time to increase plasma volume which determines cardiac output. However, your bloods oxygen carrying capacity will be diminshed for several weeks, giving you a slight decremetal performance. ...Read more

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How long I have to wait to donate blood again(i can't wait long)and can I start weight training immediately?

How long I have to wait to donate blood again(i can't wait long)and can I start weight training immediately?

2 months: Red blood cells take 6 to 8 weeks to replenish. There are many other components of blood that replenish sooner such as plasma. However, most donation centers do not allow repeated donation sooner than 8 week. After donation it is advised to hold off on strenuous activity for a few days. If you get lightheaded or dizzy, then rest is advised and you should see your physician for evaluation. ...Read more

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Dr. Donald Alves
338 doctors shared insights

Blood Donation (Definition)

Blood donation is the act of giving ones blood to a blood bank, so that it may be used in the future to help someone else. People with transmissible viral diseases, such as HIV or hepatitis C, are not able to donate blood, as ...Read more