T43.4X6 - Underdosing of butyrophenone and thiothixene neuroleptics T43.4 - Poisoning by, adverse effect of and underdosing of butyrophenone and thiothixene neuroleptics T43.4X - Poisoning by, adverse effect of and underdosing of butyrophenone and thiothixene neuroleptics T43.4X6 - Underdosing of butyrophenone and thiothixene neuroleptics