Table. NLEM 2019, Compared With WHO Model List of Essential Medicines, March 2017 .
| Group | Drug Group | Items in WHO Model List of Essential Medicines (2017) | Items in NLEM of Thailand (2019) |
| 1 | Anaesthesia | 14 | 9 |
| 2 | Medicine for pain and palliative care | 22 | 20 |
| 3 | Antiallergics and medicines used in anaphylaxis | 5 | 4 |
| 4 | Antidotes and other substances used in poisonings | 15 | 12 |
| 5 | Anticonvulsants/antiepileptics | 11 | 10 |
| 6 | Anti-infective medicines | 153 | 100 |
| 7 | Antimigraine medicines | 4 | 4 |
| 8 | Antineoplastic and immunosuppressives | 53 | 44 |
| 9 | Antiparkinson medicines | 2 | 1 |
| 10 | Medicines effecting the blood | 16 | 13 |
| 11 | Blood products of human origin and plasma substitutes | 12 | 12 |
| 12 | Cardiovascular medicines | 30 | 30 |
| 13 | Dermatological medicines | 18 | 13 |
| 14 | Diagnostic agents | 7 | 2 |
| 15 | Disinfectants and antiseptics | 7 | 7 |
| 16 | Diuretics | 5 | 5 |
| 17 | Gastrointestinal medicines | 11 | 11 |
| 18 | Hormones, other endocrine medicines and contraceptives | 31 | 22 |
| 19 | Immunological | 24 | 14 |
| 20 | Muscle relaxants and cholinesterase inhibitor | 6 | 5 |
| 21 | Ophthalmological preparations | 16 | 11 |
| 22 | Oxytocin and antioxytotic | 5 | 5 |
| 23 | Peritoneal dialysis solution | 1 | 1 |
| 24 | Medicine for mental and behavioral disorders | 17 | 15 |
| 25 | Medicines acting on the respiratory tract | 6 | 6 |
| 26 | Solutions correcting water, electrolyte and acid-base disturbances | 9 | 8 |
| 27 | Vitamins and minerals | 12 | 9 |
| 28 | Ear, nose, and throat medicines | 4 | 3 |
| 29 | Specific medicines for neonatal care | 6 | 4 |
| 30 | Medicines for disease of joints | 8 | 8 |
Abbreviations: NLEM, National List of Essential Medicines; WHO, World Health Organization.