I never had prolactin issues. I'd say use P5P as a preventive.
If symptoms/bloodwork indicates, go for caber. It acts fast — within a day or two you’ll notice relief.
To add on the p5p, my research showed that p5p isn’t clinically proven as a reliable preventative for steroid-induced prolactin issues. It’s more of a “supportive” supplement and in a medical setting it was mild and the effect is inconsistent and modest. But it's a cheap safety precaution if you feel you need. Won't hurt. But if you have bloodwork that indicated elevated prolactin, caber is the gold standard.
Also I updated my supplementation, I removed Citrus Bergamot 1000 mg, Red Yeast Rice, Beta-Sitosterol Plant Sterols, Curcumin Elite Turmeric Extract.
The Curcumin was just I think it's really negligible here. And I realized I can replace the first 3 with 4mg Pitavastatin (a statin). It's great for LDL, and also proven to help HDL, so that would save me money and ultimately is more effective and offers more help.
Hope I helped