C-21 Progestins

1 min readEvidence-linked topicGreen Medicine Encyclopedia

Overview

C-21 Progestins are a group of Progestins that possess a 21-Carbon Nucleus.  C-21 Progestins more closely resemble Natural Progesterone than do 19-Carbon Progestins (which are based on the 19-Carbon Nucleus structure of Nortestosterone) - hence their toxic effects are believed to be somewhat "lesser" than those of C-19 Progestins.

 

Types of C-21 Progestins

 Hydroxyprogesterone Caproate

 Medroxyprogesterone

 Megestrol

 

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