inity ▁for ▁the ▁ 5 - HT 1 A , ▁ 5 - HT 1 B , ▁ 5 - HT 1 D , ▁ 5 - HT 2 A , ▁ 5 - HT 2 B , ▁ 5 - HT 2 C , ▁ 5 - HT 3 , ▁and ▁ 5 - HT 7 ▁re cept ors , ▁as ▁well ▁as ▁the ▁S ERT . ▁It ▁also ▁has ▁some ▁aff inity ▁for ▁α 1 - adr ener g ic , ▁α 2 - adr ener g ic , ▁H 1 , ▁I 1 , ▁and ▁N ET . ▁It ▁behav es ▁as ▁an ▁ag on ist ▁at ▁most ▁ser ot on in ▁re cept ors . ▁m CP P ▁has ▁been ▁shown ▁to ▁act ▁not ▁only ▁as ▁a ▁ser ot on in ▁re upt ake ▁in hib itor ▁but ▁as ▁a ▁ser ot on in ▁re le asing ▁agent ▁as ▁well . ▁ ▁m CP P ' s ▁strong est ▁actions ▁are ▁at ▁the ▁ 5 - HT 2 B ▁and ▁ 5 - HT 2 C ▁re cept ors ▁and ▁its ▁disc rimin ative ▁c ue ▁is ▁medi ated ▁primarily ▁by ▁ 5 - HT 2 C . ▁Its ▁negative ▁effects ▁such ▁as ▁anx iety , ▁head aches , ▁and ▁app et ite ▁loss ▁are ▁likely ▁medi ated ▁by ▁its ▁actions ▁on ▁the ▁ 5 - HT 2 C ▁re ceptor . ▁Other ▁effects ▁of ▁m CP P ▁include ▁n ause a , ▁hy po activity , ▁and ▁pen