Home / Compare
Comparing the aromatase inhibitors
Half-life and storage side by side, which is where the practical differences in this group show up.
Reference only. This page covers what the compound is, how it is presented and how it is handled. It does not give dosing protocols or administration schedules, and it is not medical advice.
| Compound | Half-life | Storage |
|---|---|---|
| Arimidex | Approximately 50 hours. | Cool, dry, dark. |
| Aromasin | Approximately 24 hours, though the irreversible mechanism outlasts the plasma half-life. | Cool, dry, dark. |
| Letrozole | Approximately 2 days. | Cool, dry, dark. |
Stocked at The PED Shop
Arimidex - Pharmain stock£25
Quanta Pharma Aromasinout of stock£35
Letrozole - Pharmaout of stock£25
Availability checked 2026-09-08. The product page carries live stock.