QAQ dichloride is a photoswitchable compound that blocks voltage-gated Na v and K v channels. Its channel-blocking activity is observed in the trans form of the azobenzene photoswitch, while the cis form does not exhibit this effect. This compound is membrane-impermeant and selectively enters pain-sensing neurons expressing endogenous import channels. QAQ dichloride functions as a light-sensitive analgesic and provides a valuable tool for investigating signaling mechanisms involved in acute and chronic pain [1] [2].
Lupanine has a weak sedative effect on the central nervous system, interaction with specific drugs used for treatment of the CNS and for analgesic activity. Lupanine improves glucose homeostasis by influencing KATP-channels of pancreatic beta cells.
Elcatonin (Carbocalcitonin), a synthetic analog of eel calcitonin, enhances bone mineral density, inhibits bone resorption, and exhibits a central analgesiceffect [1].
Enadoline (Free Base) is a kappa-opioid receptor agonist; PD 129290 (CAM 570; CI 977) is the S,S(-)-enantiomer; PD 129289 (CAM 569) is the corresponding R,R(+)-enantiomer. In human studies, it produced visual distortions and feelings of dissociation, reminiscent of the effects of salvinorin A. It was studied as a potential analgesic, but abandoned because of the dose-limiting effects of dysphoria, which could be expected from a κ-opioid agonist. There was mention of its potential in treating comatose head injury or stroke victims, where that type of side effect would be immaterial.
Detomidine carboxylic acid is the main urine metabolite of detomidine. Detomidine is a synthetic α2-adrenergic agonist and an animal analgesic. Detomidine also has heart and breathing effects, and has a diuretic effect.