Letrozole vs Tamoxifen
## Letrozole vs Tamoxifen: Overview
This comparison examines the pharmacological differences between **Letrozole** and **Tamoxifen**.
## Mechanism of Action
**Tamoxifen**: Selective estrogen receptor modulator (SERM).
## Pharmacokinetics
**Half-life**: Letrozole — N/A; Tamoxifen — 5-7 days.
## Chemical Properties
**Molecular Formula**: Letrozole — N/A; Tamoxifen — C26H29NO.
**Molecular Weight**: Letrozole — N/A; Tamoxifen — 371.5150 g/mol.
**Type**: Letrozole — Small molecule; Tamoxifen — Small molecule.