seulement certaines HE
en effet elles doivent correspondre à un de ces critères
1. Therapeutically useless drugs, highly addictive like opium and its derivatives, heroin, cocaine, hashish, marijuana, MDMA (ecstasy), mescaline, LSD, amphetamine, methamphetamine, etc.
2. Therapeutically useful drugs but highly addictive like hydromorphone, oxycodone, pethidine, morphine, etc.
3. Therapeutically useful but not as addictive as group 1&2 like dihydrocodeine, codeine, buprenorphine, etc.