Do you see a drop in psa already after one months or does it take longer?
Zytiga works very fast in its pharmacoloical reaction working within 30 minutes of taking the tablets. This has an immediate effect on blocking testosterone production and testosterone levels quickly reduce to zero following Zytiga administration. This has an effect on killing prostate cancer which has an eventual effect at reducing PSA levels after 2 months. However there may be an intial increase in PSA levels as levels of PSA increase as tumour cells are being destroyed and the PSA marker enters the bloodstream which may increase following initial Zytiga therapy. This usually occurs within the first few weeks of taking Zytiga and the levels generally fall after a few months. The PSA should then continue to fall with continued Zytiga treatment.
I too have metastatic prostate cancer.When Zoladex results slipped to PSA 13.5 I went to Docetaxel. Dropped me in cycle 1 to 5.8/and cycle 2 to 2.2. Then to end cycle 10 remained around 2.0. 4 months without treatment and then (now) Zytiga after 4 weeks down from 25.5/to 0.58. Almost immediate. Am thrilled.
- Zytiga Information for Consumers
- Zytiga Information for Healthcare Professionals (includes dosage details)
- Side Effects of Zytiga (detailed)
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