[Candace]

Nigella Sativa/ Blackseed - also useful for prolactin (from what ive read)

http://cancercompassalternateroute.com/therapies/nigella-sativa-oil/

It can also damage normal cells, but not as much as it damages cancer cells. So it's probably safest to use it just for chemotherapy and not for chemoprevention. (First figure: red and blue lines are normal cells, green and purple lines are cancer cells.)