▁A . ▁Park . ▁ ▁D iffer ences ▁between ▁adult ▁and ▁ped iat ric ▁medicine ▁The ▁body ▁size ▁differences ▁are ▁par alle led ▁by ▁m atur ation ▁changes . ▁The ▁smaller ▁body ▁of ▁an ▁infant ▁or ▁ne on ate ▁is ▁substantial ly ▁different ▁phys i olog ically ▁from ▁that ▁of ▁an ▁adult . ▁Cong en ital ▁defect s , ▁gen etic ▁variance , ▁and ▁development al ▁issues ▁are ▁of ▁greater ▁concern ▁to ▁ped iat r icians ▁than ▁they ▁often ▁are ▁to ▁adult ▁phys icians . ▁A ▁common ▁ad age ▁is ▁that ▁children ▁are ▁not ▁simply ▁" l ittle ▁adult s ". ▁The ▁clin ician ▁must ▁take ▁into ▁account ▁the ▁imm ature ▁phys i ology ▁of ▁the ▁infant ▁or ▁child ▁when ▁considering ▁sympt oms , ▁pres cri bing ▁medic ations , ▁and ▁diagn osing ▁ill ness es . ▁ ▁Ped iat ric ▁phys i ology ▁directly ▁impact s ▁the ▁ph arm ac ok in etic ▁properties ▁of ▁dru gs ▁that ▁enter ▁the ▁body . ▁The ▁absor ption , ▁distribution , ▁met abol ism , ▁and ▁elim ination ▁of ▁medic ations ▁differ ▁between ▁developing ▁children ▁and ▁grown ▁adult s . ▁Despite ▁completed ▁studies ▁and ▁reviews , ▁contin ual ▁research ▁is ▁needed ▁to ▁better ▁understand ▁how ▁these ▁factors ▁should ▁affect ▁the ▁dec isions ▁of ▁health care ▁prov iders ▁when ▁pres cri bing ▁and ▁admin ister ing ▁medic ations ▁to ▁the ▁ped iat ric ▁population . ▁ ▁Abs or ption ▁ ▁Many ▁drug ▁absor ption ▁differences ▁between ▁ped iat ric ▁and ▁adult ▁populations ▁revol ve ▁around ▁the