Analgesic Archives - Revista Brasileira de Ginecologia e Obstetrícia

  • Original Article04-16-1998

    Chronic effects of propoxyphene napsylate on pregnant rats

    Revista Brasileira de Ginecologia e Obstetrícia. 1998;20(2):67-70

    Abstract

    Original Article

    Chronic effects of propoxyphene napsylate on pregnant rats

    Revista Brasileira de Ginecologia e Obstetrícia. 1998;20(2):67-70

    DOI 10.1590/S0100-72031998000200002

    Views83

    The purpose of this study is to evaluate the effects of propoxyphene napsylate on the pregnancy of the rat. We used fifty pregnant rats divided into five groups. All the animals received daily 1 ml of the solution by gavage from day 0 to the 20th day of pregnancy. Group I - only distilled water (control); group II - aqueous solution of acacia 2% (vehicle); groups III, IV and V - respectively, 5, 15 and 45 mg/kg of weight of propoxyphene napsylate diluted in 2% acacia solution. The animals were weighed on days 0, 7, 14 and 20 of pregnancy. All animals were sacrificed on the 20th day of pregnancy. Our results showed that the animals treated with 45 mg/kg of propoxyphene napsylate presented reduction of the individual weights of the fetuses, as well as of the weights of the newborns and placentas. The difference betewwn number of resorptions, implantations and placentas of the treated groups was shown to be non significant cohen compered with the control groups.

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    This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • Original Article04-12-1998

    Chronic effects of acetylsacylic acid on pregnant rats

    Revista Brasileira de Ginecologia e Obstetrícia. 1998;20(5):245-249

    Abstract

    Original Article

    Chronic effects of acetylsacylic acid on pregnant rats

    Revista Brasileira de Ginecologia e Obstetrícia. 1998;20(5):245-249

    DOI 10.1590/S0100-72031998000500003

    Views101

    The purpose of the present study was to evaluate the effects of acetylsalicylic acid (ASA) on the pregnancy of female albino rats. We used 60 pregnant female rats which were divided into six groups of ten cache. All the animals received daily by gavage, from the 5th (day zero) until the 20th day of pregnancy, 1 ml of the following: Group I - only distilled water (control); Group II - 0.2% aqueous solution of carboxymethylcellulose (vehicle); Groups III, IV, V and VI - 1, 10, 100 and 400 mg/kg body weight respectively, of ASA diluted in 0.2% carboxymethylcellulose solution. The animals were weighed on days 0, 7, 14 and 20 of pregnancy. Our results showed that the animals treated with 100 mg of ASA presented a reduction in the number of live newborns. The animals treated with 400 mg/kg/day presented not only a reduction in the number of live newborns but also decrease in maternal, newborn and placental weight.

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    This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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