| H03A A01 | Eltroxin |
| H03A A01 | Euthyrox |
| H03A A01 | L-Thyrox |
| H03A A01 | L-Thyrox hexal |
| H03A A01 | L-Thyrox hexal u/laktose |
| H03A A01 | L-Thyroxin |
| H03A A01 | L-Thyroxin henning |
| H03A A01 | L-Thyroxin specific |
| H03A A01 | L-Thyroxin unimedic |
| H03A A01 | L-Thyroxin-Na |
| H03A A01 | L-Thyroxin-Na ratiopharm |
| H03A A01 | L-thyroxine |
| H03A A01 | L-Thyroxine 2care4 |
| H03A A01 | L-Thyroxine serb |
| H03A A01 | Levaxin |
| H03A A01 | Levaxin u/laktose |
| H03A A01 | Levothroid |
| H03A A01 | Levothyroxine sodium Serb |
| H03A A01 | Levothyroxinnatrium |
| H03A A01 | Levotyroksinnatrium Accord |
| H03A A01 | Thyroxin-natrium |
| H03A A01 | Tirosint |
| H03A A01 | Tirosint SOL |
| H03A A01 | Tirosintsol |