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Year : 1997  |  Volume : 29  |  Issue : 6  |  Page : 393-398

Analgesic activity of silver preparations used in Indian systems of medicine

Correspondence Address:
Khanna T Ayesha

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Source of Support: None, Conflict of Interest: None

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Objective: To study analgesic effects and safety aspects of traditional silver preparations: Raupya Bhasma, Kushta Nuqra and Chandi Warq. Methods: The investigations were carried out against four types of noxious stimuli: mechanical (tail clip), chemical (acetic acid-induced writhing), electrical (pododolorimeter) and thermal (Eddys hot plate and analgesiometer) in rats and mice. Effects following naloxone pre-treatment and maximum tolerated dose (MTD) were also studied. Results: Test drugs (25-50 mg/kg, p.o) exhibited analgesic activity against chemical, thermal and electrical stimuli but not against mechanical stimulus. The effects were reduced in naloxone pre-treated animals. The MTD was more than 2 g/kg, p.o. Conclusion: Test drugs exhibited moderate to marked analgesic effects with wide margin of safety. Involvement of opioidergic mechanism is suggested.


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