Pregnancy interceptive activity of Melia azedarach Linn. in adult female Sprague-Dawley rats


      Ethanolic extract of the root of Melia azedarach Linn. (family: Meliaceae) collected from the Institute campus intercepted pregnancy in 60% and 75% adult female rats when administered at 250 and 500 mg/kg daily doses, respectively, on Days 1–10 post-coitum by the oral route. On fractionation, the activity was localized in the chloroform fraction of the ethanolic extract, which showed 80–100% activity at 250 mg/kg daily dose in repeat tests. In animals that became pregnant, there was also a significant reduction in mean number of implantations and all the implantations exhibited signs of resorption. Of the four major compounds isolated in sufficient quantity and characterized from the active chloroform fraction, two compounds showed only marginal (50%) contragestational effect. Further exploration of the active chloroform fraction, which is also devoid of estrogen agonistic activity at the contraceptive dose in immature rat bioassay, is being undertaken to identify and characterize the active principle(s).


      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'


      Subscribe to Contraception
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect


      1. Satyavati GV, Gupta AK, Bhatia N, editors. In: Medicinal plants of India. Vol 2. New Delhi: ICMR, 1987

      2. Chatterjee A, Pakrashi SC, editors. In: Treatise on Indian medicinal plants. Vol 3. CSIR, New Delhi: Publications and Information Directorate, 1994. p. 80–2

      3. Pandey G. Medicinal plants of Himalaya. New Delhi: Indiological and Oriental Publishers, 1995

        • Khalil A.M.
        • Ashy M.A.
        • Tawfik N.I.
        • El-Tawil B.A.H.
        Constituents of local plants. Part 3.
        Pharmazie. 1979; 34: 106-117
        • Bhakuni B.S.
        • Dhar M.L.
        • Dhar M.M.
        • Dhawan B.N.
        • Mehrotra B.N.
        Screening of plants for biological activity.
        Indian J Exp Biol. 1969; 7: 250-262
        • World Health Organization
        Protocol of MB-30.
        WHO, Geneva1982 (p. 7732)
        • World Health Organization
        Protocol of MB-70: a method for detecting estrogenicity in plant extracts administered orally in the rats.
        WHO, Geneva1983 (p. 9856F)