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 |
| Code | Title | |
|---|---|---|
| H03AA | Thyroid hormones |
| 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 |
Tiratricol (3,3',5-triiodothyroacetic acid) is a naturally circulating metabolite of active thyroid hormone (T3) with a high degree of structural similarity and follows the same downward degradation pathway (deiodination and conjugation) and elimination via bile and urine. Tiratricol has been demonstrated to be able to enter MCT8 dependent cells without a functioning MCT8 transporter unlike T3 and T4. Tiratricol can thereby replace T3 in MCT8 dependent tissues and restore normal thyroid hormone activity across tissues. |
| 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 | |
| EMCITATE Dispersible tablet | European Medicines Agency (EU) | 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 |