I strongly doubt it, the liver stores sporadically occurring heavy metals and small toxic components, but not complete drugs (I think). The substance you used most likely has been fully metabolized, and excreted. Further, things that do end up in the liver are stored in small vesicles in liver cells, so I would doubt those substances would be able to cause further damage after some time. I'm unsure on the possibility of such drugs retaining in some organs... Don't take my word for it, however, and consult a doctor if you're unsure about this.