P-Dope is only slang for 20-30% pure heroin. In those exact words.

"P-dope" is a term used to refer to methamphetamine synthesized from the precursor "P-2-P". This precursor was heavily restricted in the late 1980s and methamphetamine cooks moved to other precursors such as ephedrine and pseudoephedrine. Older speed freaks frequently recall the "p-dope" era and compare the product to the current forms of methamphetamine.