The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.
| Level | Code | Title | |
|---|---|---|---|
| 1 | H | Systemic hormonal preparations, excl. Sex hormones and insulins | |
| 2 | H03 | Thyroid therapy | |
| 3 | H03A | Thyroid preparations | |
| 4 | H03AA | Thyroid hormones |
| Code | Title | |
|---|---|---|
| H03AA01 | Levothyroxine sodium | |
| H03AA02 | Liothyronine sodium | |
| H03AA03 | Combinations of levothyroxine and liothyronine | |
| H03AA04 | Tiratricol | |
| H03AA05 | Thyroid gland preparations | |
| H03AA51 |
| Active Ingredient | Description | |
|---|---|---|
| Levothyroxine |
Levothyroxine sodium is used for the treatment of hypothyroidism. The chief action of levothyroxine is to increase the rate of cell metabolism. |
|
| Liothyronine |
Liothyronine sodium is a naturally occurring thyroid hormone. The biological action of liothyronine sodium is quantitatively similar to that of levothyroxine sodium. |
|
| Tiratricol |
|
| Title | Information Source | Document Type | |
|---|---|---|---|
| CYTOMEL Tablet | FDA, National Drug Code (US) | MPI, US: SPL/PLR | |
| ELTROXIN Tablet | Medicines & Healthcare Products Regulatory Agency (GB) | MPI, EU: SmPC | |
| EUTHYROX Tablet | Marketing Authorisation Holder | MPI, EU: SmPC | |
| LEVOXYL Tablet | FDA, National Drug Code (US) | MPI, US: SPL/PLR | |
| OROXINE Tablet | Health Products Regulatory Authority (IE) | MPI, EU: SmPC | |
| SYNTHROID Tablet | FDA, National Drug Code (US) | MPI, US: SPL/PLR | |
| TIROSINT Capsule | FDA, National Drug Code (US) | MPI, US: SPL/PLR |
