RU-1205 is a kappa opioid receptor agonist used for pain treatment. It has high bioavailability (44.17 and 56.03% upon peroral and subcutaneous introduction).[1]
Granulated RU-1205 produced maximum analgesic effect within 4-h investigation and retained higher analgesic activity compared to that of parent substance.[2]
RU-1205 does not cause side effects typical of morphine and butorphanol including the development of withdrawal syndrome upon naloxone provocation and tolerance to analgesic activity upon 14-day administration.[3]
^Spasov AA, Smirnova LA, Rashchenko AI, Kuznetsov KA, Anisimova VA (2014). "[The absolute bioavailability of benzimidazole derivative RU-1205 in rats]". Eksperimental'naia i Klinicheskaia Farmakologiia. 77 (1): 17–19. PMID24649597.
^Spasov AA, Smirnova LA, Grechko OI, Rashchenko AI, Shtareva DM, Anisimova VA (2014). "[Pharmacokinetic and analgesic properties of tabletized dosage form of RU-1205-new imidazobenzimidazole derivative with kappa agonist activity]". Eksperimental'naia i Klinicheskaia Farmakologiia. 77 (7): 27–30. PMID25322651.
^Grechko OY, Shtareva DM, Spasov AA, Litvinov LA, Rashchenko AI (August 2016). "Studying the Physical Dependence on and Tolerance to the Antinociceptive Effect of Ru-1205 Substance". Eksperimental'naia i Klinicheskaia Farmakologiia. 79 (4): 8–11. PMID29949697.