There are two main types of compounding pharmacies in the U.S.: 503A and 503B.

503A Pharmacies: Made Just for You

• Every prescription is custom-made for a single patient.

• A doctor must write a prescription specifically for you.

• Great for personal, unique needs. Medications are often adjusted to remove allergens, change strengths, or make them easier to take (like turning a pill into a liquid).

503B Pharmacies: Prepared in Advance

A 503B pharmacy is more like a mini pharmaceutical factory. Instead of making one prescription at a time, they make larger batches of medicine in advance.

• They don’t need a prescription for each individual patient. Made in batches for many patients.

• Great for ready-to-use, standardized medications

• Hospitals, clinics, and sometimes pharmacies order from them.

Ellie MD – the telehealth company that I am partnered with uses 503A compounding pharmacies

Disclaimer: I’m not a medical professional. All content shared is for informational purposes only and not a substitute for medical advice. Our licensed medical providers will review your medical history and prescribe accordingly. Results may vary. I may earn a commission from referrals or purchases made through my links.