substance-p--prolyl(2)-tryptophan(7-9)- has been researched along with biphalin* in 1 studies
1 other study(ies) available for substance-p--prolyl(2)-tryptophan(7-9)- and biphalin
Article | Year |
---|---|
Spinal co-administration of peptide substance P antagonist increases antinociceptive effect of the opioid peptide biphalin.
Intrathecal injection of 0.25 micrograms of undecapeptide substance P antagonist (SPA) produced transient antinociception with a peak effect at 5 min. Increasing the SPA dose resulted in neurotoxicity. Intrathecal injection of the opioid peptide biphalin (BIP) produced antinociception for over 3 hrs without neurotoxicity. Co-administration of SPA (at subtoxic doses) increased BIP's antinociceptive effect. Naltrexone reversed analgesia due to BIP alone as well as after BIP+SPA. Topics: Analgesics; Animals; Drug Synergism; Enkephalins; Injections, Spinal; Male; Naltrexone; Pain; Pain Measurement; Rats; Rats, Wistar; Substance P | 1994 |