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Table 2 Available formulations of LT3 and combination LT3/LT4

From: Management of hypothyroidism with combination thyroxine (T4) and triiodothyronine (T3) hormone replacement in clinical practice: a review of suggested guidance

Name T3 dose T4 dose Available
Cytomel 5, 25, 50mcg   US, Canada, Netherlands
Thybon 20, 100mcg   UK
Tertroxin 20 mcg   Australia, South Africa
Liotyr 5 mcg (soft gel)   Italy
Prothyroid 10 mcg 100 mcg Germany
Novothyral 5/15/20 mcg 25/75/100 mcg Several Europe
Thyreotom forte 10/30 mcg 40/120 mcg Czech republic