Cephalexin vs Levothyroxine

## Cephalexin vs Levothyroxine: Overview

This comparison examines the pharmacological differences between **Cephalexin** and **Levothyroxine**.

## Mechanism of Action

**Cephalexin**: First-generation cephalosporin inhibiting cell wall synthesis.

**Levothyroxine**: Synthetic thyroid hormone T4 replacement.

## Pharmacokinetics

**Half-life**: Cephalexin — 0.5-1.2 hours; Levothyroxine — 6-7 days.

## Chemical Properties

**Molecular Formula**: Cephalexin — C16H17N3O4S; Levothyroxine — C15H11I4NO4.

**Molecular Weight**: Cephalexin — 347.3890 g/mol; Levothyroxine — 776.8700 g/mol.

**Type**: Cephalexin — Small molecule; Levothyroxine — Small molecule.