… The rat paw formalin test is a model of prolonged pain due to mild tissue injury. There is
some evidence suggesting that morphine does not produce antinociception in the formalin test …

… 5 alone or combined with morphine was assessed in the formalin test. Local administration
of 1-[4-… of sildenafil and morphine produced peripheral antinociception in the formalin test. In …

… morphine analgesia with 1% but not with 5% of formalin. … morphine antinociception. Thus
it is plausible that the molecular basis of peripheral analgesia induced by morphine in this test …

… effect of morphine on both phases of formalin-induced pain, but naloxone did not reverse
the suppressive effect of crocin. This indicates that crocin produces antinociception by a …

… : The antinociceptive activities of morphine, and its quaternary analogue methylmorphine, …
mouse paw formalin test. Systemic morphine inhibited both the early and late phases of the …

… pain and morphine antinociception by the formalin test in mice. The formalin test was chosen
… on the action of morphine. All doses significantly potentiated the low dose (1.5 mg kg−1) of …

… of imipramine on morphine antinociception in tolerant and non-tolerant mice in the formalin
test, was investigated. Subcutaneous administration of different test doses of morphine (3, 6 …

… This study investigated the influence of dopaminergic antagonists and NO agents on
antinociceptive responses to morphine in the formalin test, in morphine-sensitized animals. …

… antinociception. Our results also show that hydromorphone was five times as potent as morphine
in the formalin test, … to and 36% as potent as morphine, respectively. Hydromorphone-3-…

… hot plate test and the tail flick test. In the increasing temperature hot plate test and in the
formalin test, no effect of diazepam on the nociceptive effect of morphine was observed. The …