• N05CB Barbiturates, combinations 18 drugs
• N05CD Benzodiazepine derivatives 7 drugs
• N05CF Benzodiazepine related drugs 7 drugs
• N05CH Melatonin receptor agonists 4 drugs
• N05CM Other hypnotics and sedatives 102 drugs
• N05CX Hypnotics and sedatives in combination, excl. barbiturates 4 drugs