Also, be sure to see the Game of Thrones Characters chart, here. Below is a simpler chart focusing only on the four main families. It primarily shows the royal bloodline with all the claimants and possible claimants, including popular fan theories (SPOILERS!). Click it to enlarge.
Other drugs, known as prodrugs, are activated by the action of CYP2D6. This enzyme also metabolizes several endogenous substances, such as hydroxytryptamines, neurosteroids, and both m-tyramine and p-tyramine which CYP2D6 metabolizes into dopamine in the brain and liver.
Tamoxifen belongs to a class of drugs called selective estrogen receptor modulators (SERMs), which work by blocking estrogen from binding to its receptors in the breast. This drug works as well in both premenopausal and postmenopausal women.