It depends on what you mean. If someone gets a legal prescription of a drug, let's say oxycodone, then starts selling some of those pills, you could stretch it out to blame the pharma industry, but that wouldn't be a logical step of blame. The pharma company legally sold the drugs to a pharmacy, then the drugs were legally prescribed to a patient by a physician. The first step of illegality occurs when the patient illegally sells the drugs.

If you mean that some evil villian CEO of a pharma company is illegally dumping certain drugs on the street, the answer would be an emphatic NO. Why would a highly-paid CEO risk prison and putting his or her company out of business? It makes no sense. Pharmaceutical companies are all highly regulated.