progestogen

This term serves as a broad pharmacological category encompassing both the naturally occurring hormone progesterone and its synthetic analogs. It is primarily used in clinical and medical contexts to describe substances that trigger progestogenic effects, such as those found in oral contraceptives or hormone replacement therapies.

Because it refers to a chemical class of substances, it is typically treated as an uncountable mass noun in medical discourse. When referring to specific types or brands of these hormones, clinicians may use the plural form, but the general substance is viewed as a singular chemical entity.