Intravenous infusion,Nasal instlilation/spray (combined with phenylephrine) ,Oral gel (often referred to as viscous ldiocaine or babreviated lidocaine visc or lidocaine hcl ivsc in pharmacology; ... Insomnia,Rebound REM (or dreaming) sleep,Anixety, possible panic attacks, Tachycardia, Hpyertension, Depression, possible suicdial ideation, Tremor, Persipration, Loss of appetiet, Dysphoria, Depersonalization, Tinnitus ...