se . ▁It ▁may ▁col lo qu ial ly ▁be ▁referred ▁to ▁as ▁" s ux ". ▁ ▁Medical ▁uses ▁ ▁Its ▁medical ▁uses ▁are ▁limited ▁to ▁short - term ▁mus cle ▁relax ation ▁in ▁an est hes ia ▁and ▁int ensive ▁care , ▁usually ▁for ▁facil itation ▁of ▁end ot rache al ▁int ub ation . ▁It ▁is ▁popular ▁in ▁emer gency ▁medicine ▁due ▁to ▁its ▁rapid ▁on set ▁and ▁brief ▁duration ▁of ▁action . ▁The ▁former ▁is ▁a ▁major ▁point ▁of ▁consideration ▁in ▁the ▁context ▁of ▁tra uma ▁care , ▁where ▁end ot rache al ▁int ub ation ▁may ▁need ▁to ▁be ▁completed ▁very ▁quickly . ▁The ▁latter ▁means ▁that , ▁should ▁attempts ▁at ▁end ot rache al ▁int ub ation ▁fail ▁and ▁the ▁person ▁cannot ▁be ▁vent il ated , ▁there ▁is ▁a ▁prospect ▁for ▁neur om us cular ▁recovery ▁and ▁the ▁on set ▁of ▁sp ont aneous ▁breath ing ▁before ▁low ▁blood ▁o xygen ▁levels ▁occurs . ▁It ▁may ▁be ▁better ▁than ▁ro cur on ium ▁in ▁people ▁without ▁contra ind ic ations ▁due ▁to ▁its ▁faster ▁on set ▁of ▁action ▁and ▁shorter ▁duration ▁of ▁action . ▁ ▁S ux am eth on ium ▁is ▁also ▁commonly ▁used ▁as ▁the ▁sole ▁mus cle ▁relax ant ▁during ▁electro conv uls ive ▁ther apy , ▁fav oured ▁for ▁its ▁short ▁duration ▁of ▁action . ▁ ▁S ux am eth on ium ▁is ▁quickly ▁de grad ed ▁by ▁pl asma ▁but y ry l ch olin ester ase ▁and ▁the ▁duration ▁of