Juniperus communis (common juniper) has been traditionally used for various medicinal purposes, including its use as a diuretic, antiseptic, and anti-inflammatory agent. Recent studies have explored its potential antifertility effects.
In laboratory investigations, extracts of Juniperus communis were evaluated for their influence on hormonal activity, particularly their estrogenic, antiestrogenic, progestagenic, and antiprogestagenic effects. The research revealed that Juniperus communis extracts did not exhibit estrogenic or progestagenic activity but demonstrated antiprogestational properties, which account for its antifertility effects.