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Letrozole: When will I start feeling/seeing side effects?

Breast Cancer | Last Active: May 19 10:48pm | Replies (145)
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@deluga

I got TN, a type of neuropathy (nerve in the ear) on the 3rd day and it was so painful, I stopped. My oncologist said you don't get side effects that quickly so it wasn't Letrozole. I don't believe her and will not retake it or any AI since all can bring on neuropathy in older woman. I'm 81.

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Replies to "I got TN, a type of neuropathy (nerve in the ear) on the 3rd day and..."
windyshores | @windyshores | Dec 23, 2022

@deluga I would think side effects from hormone suppression would take awhile. That was my experience.

However, there is another category of reaction that happen more quickly- reaction to the ingredients of the pill, especially fillers. This happened to me: neurological effects within minutes. It is a "sensitivity," "intolerance," or even "allergy" but not a side effect.

This actually happens to me with quite a few meds. If I switch manufacturers, often a medication will work fine without. (For me polyethylene glycol is one culprit).

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