Abiraterone a detrimental effect on high blood pressure so it depends on your general health. If you have adverse reactions to one then you can switch to the other.
My husband has an aneurysm so he tried enzalutamide, he didn’t get on with the side effects so, after chemotherapy he wil most probably be offered abiraterone. We did speak to his oncologist and she reassured us that you can try a different drug because the initial treatment caused side effects that he couldn’t cope with.
however, his PSA dropped dramatically after four weeks of enzalutamide and remained so whilst he was taking steroids