ell ▁and ▁Z onn ic . ▁ ▁Altern ative ▁nic ot ine ▁replacement ▁products ▁include ▁the ▁nic ot ine ▁patch , ▁nic ot ine ▁past illes / lo z eng es ▁and ▁the ▁nic ot ine ▁in hal er . ▁ ▁Medical ▁uses ▁ ▁Nic ot ine ▁g um ▁can ▁be ▁used ▁in ▁combination ▁with ▁long ▁acting ▁nic ot ine ▁replacement ▁ther apy ▁form ulations ▁such ▁as ▁the ▁nic ot ine ▁patch . ▁It ▁has ▁been ▁shown ▁that ▁combination ▁ther apy ▁is ▁more ▁effective ▁than ▁use ▁of ▁a ▁single ▁agent ▁for ▁to b acco ▁c ess ation .. ▁Nic ot ine ▁absor ption ▁from ▁che wing ▁g um ▁is ▁much ▁lower ▁than ▁during ▁sm oking . ▁In ▁addition , ▁extra ction ▁of ▁nic ot ine ▁is ▁incomplete , ▁aver aging ▁ 5 3 % ▁and ▁ 7 2 % ▁for ▁ 2 ▁m g ▁and ▁ 4 ▁m g ▁g um , ▁respectively , ▁and ▁it ▁var ies ▁among ▁individuals . ▁ ▁It ▁is ▁important ▁to ▁recognize ▁that ▁to b acco ▁c ess ation ▁is ▁treatment ▁of ▁nic ot ine ▁add iction . ▁As ▁with ▁other ▁types ▁of ▁add iction , ▁ph arm ac ological ▁ther apy ▁is ▁not ▁the ▁only ▁component ▁in ▁tre ating ▁add iction . ▁Be havior al ▁hab its ▁must ▁also ▁be ▁treated , ▁and ▁modifications ▁to ▁these ▁behav iors ▁along ▁with ▁ph arm ac ological ▁ther ap ies ▁can ▁greatly ▁impact ▁and ▁improve ▁ch ances ▁of ▁successful ▁to b acco ▁c ess ation . ▁ ▁D osing ▁