From the context I assume he is talking about counterfeit pain pills (a M30 is an oxycodone pill) that are made with fentanyl (often in very high or uneven dose

From the context I assume he is talking about counterfeit pain pills (a M30 is an oxycodone pill) that are made with fentanyl (often in very high or uneven doses). Though counterfeit Adderall pills made with meth are now starting to show up.