Digoxin vs Erlotinib

## Digoxin vs Erlotinib: Overview

This comparison examines the pharmacological differences between **Digoxin** and **Erlotinib**.

## Mechanism of Action

**Digoxin**: Inhibits Na+/K+-ATPase, increasing intracellular calcium.

**Erlotinib**: Reversible inhibitor of EGFR (HER1) tyrosine kinase, blocking autophosphorylation.

## Pharmacokinetics

**Half-life**: Digoxin — 36-48 hours; Erlotinib — 36 hours.

## Chemical Properties

**Molecular Formula**: Digoxin — C41H64O14; Erlotinib — C22H23N3O4.

**Molecular Weight**: Digoxin — 780.9430 g/mol; Erlotinib — 393.4380 g/mol.

**Type**: Digoxin — Small molecule; Erlotinib — Small molecule.