| Drug Class | Thyroid hormone |
|---|---|
| Mechanism | Mimics endogenous thyroxine |
| Typical Dose | Initially 25-50 micrograms OD adjusted in 25 microgram steps according to symptoms |
| Indications | Hypothyroidism |
| Contra-indications | Hyperthyroidism |
| Side-effects | * Hyperthyroid symptoms if over adjusted * Rare: cardiac dysrhythmias, MI, Angina, |
| Interactions | Warfarin: ↑ effect of Warfarin |
| Elimination | |
| Additional Notes | TFTs must be monitored every 3 months |