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Ferujol is a compound in the coumarin family, isolated from Ferula jaeschkeana and reported to have contraceptive activity when given to female rats 1-5 days after coitus.
References
Singh MM, Gupta DN, Wadhwa V, Jain GK, Khanna NM, Kamboj VP. (1985) Contraceptive efficacy and hormonal profile of ferujol: a new coumarin from Ferula jaeschkeana. Planta medica 1985 (3):268-270