Cr??k ?????n? as ??ld about the streets may well b? adulterated or “?ut” w?th other substances m?m??k?ng th? ?????r?n?? of ?r??k ?????n? t? ?n?r???? bulk. U?? ?f t?x?? ?dult?r?nt? these kinds of ?? levamisole h?? b??n d??um?nt?d. It ??n ????l? ?r??? th? bl??d–br??n b?rr??r