Robuta

https://pmc.ncbi.nlm.nih.gov/articles/PMC2771679/ Cross-sensitization and cross-tolerance between exogenous cannabinoid antinociception and... Footshock stress induces both endocannabinoid mobilization and antinociception. The present studies investigated behavioral plasticity in cannabinoid... cross sensitizationtoleranceexogenouscannabinoidantinociception https://erowid.org/references/refs_view.php?ID=6906&S=nmda&SField=All Erowid.org: Erowid Reference 6906 : Dextromethorphan differentially affects opioid antinociception... The Index page for the reference article: Chen SL, Huang EY, Chow LH, Tao PL Dextromethorphan differentially affects opioid antinociception in rats Br J... erowid orgreference6906dextromethorphanaffects