▁for ▁bar bit ur ates ). ▁N emb ut al ▁is ▁tra dem ark ed ▁and ▁manufact ured ▁by ▁the ▁Dan ish ▁ph arma ce ut ical ▁company ▁Lund beck ▁( now ▁produced ▁by ▁Ak orn ▁Ph arma ce ut ical s ) ▁and ▁is ▁the ▁only ▁inject able ▁form ▁of ▁pent obar b ital ▁approved ▁for ▁sale ▁in ▁the ▁United ▁States . ▁Abb ott ▁dis cont in ued ▁their ▁N emb ut al ▁brand ▁of ▁Pent obar b ital ▁caps ules ▁in ▁ 1 9 9 9 , ▁largely ▁replaced ▁by ▁the ▁Ben z odia ze pine ▁family ▁of ▁dru gs . ▁Abb ott ' s ▁N emb ut al ▁brand ▁of ▁Pent obar b ital ▁caps ules ▁were ▁widely ▁ab used ▁and ▁were ▁known ▁on ▁the ▁streets ▁as ▁" yellow ▁jack ets ". ▁They ▁were ▁available ▁in ▁ 5 0 ▁and ▁ 1 0 0 ▁M g . str ength ▁yellow ▁caps ules . ▁ ▁Pent obar b ital ▁can ▁occur ▁as ▁a ▁free ▁acid , ▁but ▁is ▁usually ▁form ulated ▁as ▁the ▁sod ium ▁salt , ▁pent obar b ital ▁sod ium . ▁The ▁free ▁acid ▁is ▁only ▁slightly ▁sol ub le ▁in ▁water ▁and ▁in ▁eth an ol . ▁ ▁References ▁ ▁External ▁links ▁▁▁ ▁Category : AMP A ▁re ceptor ▁ant agon ists ▁Category : Bar bit ur ates ▁Category : G AB AA ▁re ceptor ▁positive ▁al loster ic ▁mod ul ators ▁Category : G ly c ine ▁re ceptor ▁ag on ists ▁Category : H yp