Short answer: Both labels say store between 15°C and 30°C (59°F and 86°F); neither gives a fridge instruction. The Armour Thyroid label adds a tight container protected from light and moisture. The Cytomel label names no container, light or moisture rule. Neither has a patient leaflet. Armour Thyroid is not FDA approved; this page quotes its label.
Cytomel is liothyronine (T3). Armour Thyroid is desiccated pig thyroid; its label says it “has not been approved by FDA as a new drug.”
| Question | Cytomel | Armour Thyroid |
|---|---|---|
| Temperature | Between 15°C and 30°C (59°F and 86°F) | Between 15°C and 30°C (59°F and 86°F) |
| Container | Not stated | Tight container |
| Light | Not stated | Protected from light |
| Moisture | Not stated | Protected from moisture |
| Pack | Bottles of 100 (5, 25 and 50 mcg) | Bottles of 100 with child-resistant closures; unit dose cartons of 100 for some strengths |
| Patient leaflet | None | None |
| Refrigerator | Not stated | Not stated |
Cytomel section 16: “Store between 15°C and 30°C (59°F and 86°F).”
Armour Thyroid How Supplied: “Store in a tight container protected from light and moisture. Store between 15°C and 30°C (59°F and 86°F).”
Levothyroxine (Synthroid) is on the Clomid, Arimidex and levothyroxine page, and Tirosint capsules on the Tirosint page.
Dosing: Cytomel and Armour Thyroid. Missed a dose: Cytomel and Armour Thyroid. Side effects: Cytomel and Armour Thyroid. Molecules: liothyronine and Armour Thyroid. Comparisons: Cytomel vs Armour Thyroid, Armour Thyroid vs Synthroid and levothyroxine vs liothyronine.
No ice pack is needed. Keep both in their bottles in your carry-on, between 59°F and 86°F, out of a hot car; Armour Thyroid stays closed and dry.