It's interesting how our government decides that some drugs are good and they become "medicines" and some are evil and they remain street drugs, and how this gets almost reversed in the populace. The medicines must cause horrible side effects because they are the products of corrupt big corporations, while the street drugs are considered "safe", particularly at low doses, or if they are "natural". But all of these substances have some potential for good, and some for bad effects on the body, and dosage, route of administration, and the particulars of the individual body matter a great deal regarding the results one will get.