Depends on where your home is. In the US I can get stuff to make amphetamine/meth precursors, I can buy meth precursors I can easily make chloroform, but I wouldn't call that a drug, I can get melatonin which I can convert to tryptamine, I can get bphentylethylamine, whc could be turned into an opiate, I can get several essential oils like eugenol, and camphor which I can make mdma from...I'm sure I could come up with a few others if I thought for a minute. None of it is as simple as a trip to walmart, that was 1985.