# SourceRX > SourceRX provides the prescriber network, licensed 503A compounding fulfillment, storefront, checkout and compliance controls behind white-label telehealth brands in the United States. SourceRX (SourceRx LLC, Austin, TX) is approval only. It is not a pharmacy and does not practice medicine. Licensed prescribers make clinical decisions and licensed compounding pharmacies prepare medication. Compounded drugs are not FDA-approved. Contact: support@sourcerx.us. ## Product - [White-Label Telehealth Platform for 503A Brands | SourceRX](https://www.sourcerx.us/platform/): One platform for a compounded care brand: prescriber coverage, 503A pharmacy fulfillment, branded storefront, hosted checkout, clinical review and payout ledger. - [How SourceRX Works: From Application to First Order](https://www.sourcerx.us/how-it-works/): Apply, get approved, publish under your own domain. Then follow a compounded order from prescription through payment, clinical review, compounding and payout. - [503A Telehealth Compliance Controls | SourceRX](https://www.sourcerx.us/compliance/): The specific controls behind SourceRX: prescription records, prescriber NPI and license checks, mandatory clinical review, encrypted patient data and hosted checkout. - [SourceRX FAQ: Applying, Stores, Compliance and Payments](https://www.sourcerx.us/faq/): Answers about SourceRX: what it is, who can apply, cost, domains, payments, prescriptions, clinical review, HIPAA and whether compounded drugs are FDA-approved. - [About SourceRX | White-Label Telehealth Infrastructure](https://www.sourcerx.us/about/): SourceRx LLC is an Austin, Texas company running the infrastructure behind white-label compounded care brands. What it does, what it does not do, and how to reach it. ## Guides - [What Is a 503A Pharmacy? Rules, Limits and Oversight](https://www.sourcerx.us/learn/what-is-a-503a-pharmacy/): A 503A pharmacy is a state-licensed pharmacy compounding for an identified patient on a valid prescription. Learn the conditions, exemptions and who oversees it. - [503A vs 503B: Key Differences for Compounding](https://www.sourcerx.us/learn/503a-vs-503b/): 503A pharmacies compound for a named patient on a prescription. 503B outsourcing facilities follow CGMP and can supply office stock. A side-by-side comparison. - [What Is White-Label Telehealth? A Plain Guide](https://www.sourcerx.us/learn/what-is-white-label-telehealth/): White-label telehealth lets a business sell care under its own brand while a platform runs prescribers, pharmacy, checkout and records. What to check before you sign. - [How to Start a Telehealth Company: 7 Steps](https://www.sourcerx.us/learn/how-to-start-a-telehealth-company/): Starting a telehealth company takes seven steps: legal structure, care model, prescribers, pharmacy, patient records, payments and compliant marketing. - [What Makes a Prescription Valid for 503A Compounding?](https://www.sourcerx.us/learn/valid-prescription-503a-compounding/): A 503A prescription must identify an individual patient and come from a licensed prescriber. Office-use orders do not qualify. What the record should contain. - [Do Telehealth Prescribers Need a License in Every State?](https://www.sourcerx.us/learn/do-telehealth-prescribers-need-a-license-in-every-state/): A telehealth prescriber generally needs authority to practice where the patient is located. How state licensing, the licensure compact and DEA rules apply. - [Marketing Compounded Medications: What FDA Objects To](https://www.sourcerx.us/learn/marketing-compounded-medications/): Compounded drugs are not FDA-approved, and marketing cannot imply approval, sameness to a brand-name drug, or that the brand compounds them. What FDA has flagged. ## Reference - [Telehealth and 503A Compounding Glossary | SourceRX](https://www.sourcerx.us/glossary/): Short definitions of telehealth and compounding terms: 503A, 503B, CGMP, patient-specific prescription, NPI, NPPES, the Interstate Medical Licensure Compact and more. - [Full text of the site](https://www.sourcerx.us/llms-full.txt): every guide and answer as plain text.