alexa Novel strategies for optimized delivery of select components of Allium sativum.
Pharmaceutical Sciences

Pharmaceutical Sciences

Journal of Bioequivalence & Bioavailability

Author(s): Phadatare AG, Viswanathan V, Mukne A

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Abstract BACKGROUND: Garlic (Allium sativum) has been known to exhibit a wide range of pharmacological activities which are attributed mainly to the organosulfur compounds present in it. Allicin and garlic oil, components obtained from garlic, have been explored and found to be biologically active on various fronts. Allicin is known to have major stability issues due to rapid degradation even at low temperatures, whereas garlic oil, being lipophilic, shows poor bioavailability after oral administration. OBJECTIVE: To develop novel strategies for optimum delivery of allicin and garlic oil so as to achieve effective availability in the physiological system. MATERIALS AND METHODS: Garlic cloves were lyophilized to obtain allicin-releasing garlic powder (ARGP). This powder was analyzed spectrophotometrically and was used to formulate buccal tablets. Garlic oil was obtained by hydrodistillation of garlic cloves and analyzed by gas chromatography. Self-nanoemulsifying systems (SNS) containing garlic oil were prepared using suitable surfactants and cosurfactants. The SNS were adsorbed on Aerosil 200 and filled in hard gelatin capsules. Both the formulations were suitably evaluated. RESULTS: Buccal tablets containing ARGP showed satisfactory physical parameters as well as in vitro drug release, mucoadhesive strength, moisture uptake capacity and drug content. Evaluation of capsules containing SNS of garlic oil also gave satisfactory results. The adsorbed SNS when dispersed in water formed nanoemulsions. CONCLUSION: Buccal tablets as well as capsules containing garlic oil SNS provide promising strategies to overcome the difficulties associated with formulation of allicin and garlic oil.
This article was published in Pharmacognosy Res and referenced in Journal of Bioequivalence & Bioavailability

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