If 'free' is the problem then just legalise/decriminalise it, and sell it at a pharmacies like any other drug. The retail cost of heroin would be pretty low if

If 'free' is the problem then just legalise/decriminalise it, and sell it at a pharmacies like any other drug. The retail cost of heroin would be pretty low if legalised (around the cost of alcohol or tobacco?), so you can still solve the problem without subsidising the costs.