TY - JOUR T1 - PAssive inhalation of marijuana, phencyclidine, and freebase cocaine ('crack') by infants AU - SCHWARTZ RH Y1 - 1989/06/01 N1 - 10.1001/archpedi.1989.02150180022010 JO - American Journal of Diseases of Children SP - 644 EP - 644 VL - 143 IS - 6 N2 - Sir.—Infants and toddlers appear to be highly susceptible to the toxic effects of smoke from pyrolyzed marijuana, phencyclidine, and freebase cocaine ("crack"). In the January 1989 issue of AJDC, Bateman and Heagarty1 described the hospital course of four children who developed neurologic symptoms following passive inhalation of vaporized crack. Two of the four infants developed seizures. Accidental or deliberate exposure of infants to ambient marijuana or phencyclidine smoke in small smoke-filled rooms or in automobiles has been previously reported.2,3 When irresponsible adolescents or young adults are intoxicated, they may, as a kind of sadistic "amusement," deliberately blow puffs of marijuana smoke into the noses or open mouths of crying irritable infants to sedate them.2 Infants who ride in poorly ventilated automobiles with phencyclidine-smoking adults have developed frighteningly serious neurologic symptoms, such as coma or seizures.3 It seems that urine toxicologic screening tests for drugs SN - 0002-922X M3 - doi: 10.1001/archpedi.1989.02150180022010 UR - http://dx.doi.org/10.1001/archpedi.1989.02150180022010 ER -