Side effects of medication

Hello Northyorkshirelass,

Thanks for getting in touch. I can see from your profile that you’ve joined our online breast cancer forum and having been supporting others there.

I can appreciate you would like to know what could be causing the symptoms you describe.

As nurses on the Macmillan Support Line, we unfortunately can’t say what could be causing your symptoms.

We would always recommend that new, changing, or worsening symptoms are assessed, especially as yours have changed since you were last at the clinic.

You should tell your doctor straight away that your fingers have occasionally been going blue and tingly.

There are a few conditions which can cause these symptoms, but you need to be examined.

Bluish skin discolouration can be a sign that a blood clot may have formed. This is listed as a rare, serious side effect of letrozole.

If you can’t speak to a doctor today, you should contact 111.

I hope this helps.

Sending best wishes,

Carole – Cancer Information Nurse Specialist

You can also speak with the Macmillan Support Line team of experts. Phone free on 0808 808 0000 (7 days a week, 8am-8pm) or email us. 

Ref/ KG

Thank you! Managed to see GP this afternoon. She said she would have to write to consultant to check where a blood clot could be & see if I needed more scans. Said if it was in one arm then both arms wouldn't go blue, if it was in a central position then I would have more serious symptoms than blue hands. She has referred me for non urgent blood tests, to check especially for vit B deficiency.