Compounded Drug

A medication prepared by a licensed pharmacist by combining or altering ingredients to meet a specific patient prescription. Compounding pharmacies (503A and 503B) have specific FDA regulatory frameworks.

What does Compounded Drug mean in peptide research?

A medication prepared by a licensed pharmacist by combining or altering ingredients to meet a specific patient prescription. Compounding pharmacies (503A and 503B) have specific FDA regulatory frameworks. This term is part of the broader field of peptide research, which encompasses both FDA-approved therapeutic peptides and research-grade compounds used in scientific investigation.

Why this term matters

Understanding Compounded Drug is foundational for anyone reviewing peptide research literature, comparing different research compounds, or following regulatory developments in this field. The term appears across pharmacology textbooks, FDA documentation, and clinical trial reports.

Where to learn more

For deeper context, see our peptide research articles:

• What Are Peptides? Comprehensive Introduction
• Research-grade vs Clinical-grade Peptides
• FDA Peptide Regulatory Status 2026
• Full Peptide Glossary Article