A comparison in mice of naloxone and nalorphine as antagonists to neuroleptanalgesic drugs.

نویسنده

  • W D Smith
چکیده

The effectiveness of naloxone and nalorphine in antagonizing the effects of fentanyl and droperidol on the hot plate reaction time and the respiratory rate of the mouse has been compared. Naloxone was superior to nalorphine, being a more effective antagonist, and was also free from significant agonist effects. However, neither antagonist was completely effective against the respiratory rate depression produced by combinations of fentanyl and droperidol. It is suggested that the duration of the antagonist effects of naloxone are shorter against respiratory depression than against analgesia.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Interactive Effects of Acute and Chronic Lithium with Dopamine Receptor Antagonists on Naloxone-Induced Jumping in Morphine-Dependent Mice

In the present study, interactive effects of D1 and D2 dopamine receptors antagonists and different periods of lithium pretreatment on morphine dependence in mice have been investigated. This study was designed to investigate whether the hypothesis that lithium and dopaminergic mechanisms via their effects on phosphoinositide pathways and calcium flux could influence morphine withdrawal respons...

متن کامل

The Effects of Dopamine Receptor Agents on Swim Stress-Induced Inhibition of Naloxone-Induced Jumping Behavior in Morphine-Dependent Mice

In the present study, interactions of dopamine receptor agonists and antagonists with water swimming stress (WSS) on naloxone-induced jumping in morphine-dependent mice were examined. Mice were rendered dependent as described in the methods section. The opioid receptor antagonist, naloxone (1 mg/kg), was injected to elicit jumping (as a withdrawal sign). The first group exposed to WSS in the pr...

متن کامل

The respiratory, circulatory, and narcotic antagonistic effects of nalorphine, levallorphan, and naloxone in anaesthetized subjects.

IT HAS BEEN XaEt'ORTED that, when administered alone, the hvo clinically available narcotic antagonists, nalorphine hydrochloride (Nalline) 1-7 and levallorphan tartrate, 8-1~ have respiratory and circulatory effects similar to those of narcotics. When a third potent narcotic antagonist, naloxone hydrochloride, became available for experimental use, it seemed worthwhile to compare the respirato...

متن کامل

Interactive Effects of Acute and Chronic Lithium with Dopamine Receptor Antagonists on Naloxone-Induced Jumping in Morphine-Dependent Mice

In the present study, interactive effects of D1 and D2 dopamine receptors antagonists and different periods of lithium pretreatment on morphine dependence in mice have been investigated. This study was designed to investigate whether the hypothesis that lithium and dopaminergic mechanisms via their effects on phosphoinositide pathways and calcium flux could influence morphine withdrawal respons...

متن کامل

The Effects of Dopamine Receptor Agents on Swim Stress-Induced Inhibition of Naloxone-Induced Jumping Behavior in Morphine-Dependent Mice

In the present study, interactions of dopamine receptor agonists and antagonists with water swimming stress (WSS) on naloxone-induced jumping in morphine-dependent mice were examined. Mice were rendered dependent as described in the methods section. The opioid receptor antagonist, naloxone (1 mg/kg), was injected to elicit jumping (as a withdrawal sign). The first group exposed to WSS in the pr...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • British journal of anaesthesia

دوره 48 11  شماره 

صفحات  -

تاریخ انتشار 1976