Honestly, I think it would be much easier to name the drugs that taste "good". Has anyone ever chewed up a Soma (carisoprodol)? Pretty rank. Mepregan? Ugggh. That stuff's vile. I'd imagine rust would taste like Mephregan. Klonopin, valium taste okay. Xanax is pretty nasty, but not any nastier than a tylenol. Most pills are bitter like xanax.