When tested in normal human volunteers, it was found to exert sedative properties, but when tested in ~500 patients with various psychiatric disorders, only those with endogenous depression exhibited a remarkable improvement of clinical symptoms after 1-6 weeks of daily treatment
(2009) 90:814S21S
So the practical takeaway is not oral is better or SC is better. It is: pick one route, follow the documented per-dose figure for the vial you have, and keep the route constant so that whatever you observe is not confounded by a mid-stream route change
In further embodiments, the auris formulation or composition contains a viscosity enhancing agent or viscosity modulating agent sufficient to provide a viscosity of between about 10 and 1,000,000 centipoise, between about 100 and 1,000,000 centipoise, between about 500 and 1,000,000 centipoise, between about 750 and 1,000,000 centipoise