A 64-year-old female is diagnosed with osteoporosis and is receiving treatment with raloxifene

A 64-year-old female is diagnosed with osteoporosis and is receiving treatment with raloxifene. What is raloxifene?

An androgenic steroid
A bisphosphonate
A selective androgen receptor modulator (SARM)
A selective oestrogen receptor modulator (SERM)  This is the correct answer
A synthetic oestrogen  Incorrect answer selected

Raloxifene, like tamoxifen, is a SERM with oestrogen-like activity at sites such as bone but antioestrogen-like effects on breast/endometrium