MedisourceRx
FDA-registered 503B outsourcing facility at 10525 Humbolt St, Los Alamitos. Hims & Hers acquired it on 2024-09-05 to add sterile compounding capacity. Its FDA warning letter does not mention GLP-1s.
Legal name: MedisourceRx (Hims & Hers subsidiary since Sept 2024)
Telehealth brands that use MedisourceRx
FDA and regulatory record
Warning letters and Form 483s record problems FDA found during an inspection at the time. They don't by themselves mean the medication you receive today is unsafe, and pharmacies often fix the issues. Check the dates, and read the source documents.
- Dec 12, 2025 · FDA warning letter
After a May-June 2025 inspection, FDA said the facility failed 503B conditions, including adverse-event reporting failures, so its products were unapproved and misbranded.
Source → - Oct 22, 2020 · Form 483
Observations included incomplete investigation of unknown particles in product batches and media fills (a repeat observation).
Source →
Questions about MedisourceRx
Which telehealth companies use MedisourceRx?
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Among the brands we track: Hims & Hers. Each of these brands names the pharmacy in its own materials.
What kind of pharmacy is MedisourceRx?
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MedisourceRx is listed as: 503b outsourcing facility · brand-owned pharmacy, based in Los Alamitos, CA. 503A pharmacies compound medication for individual patient prescriptions under state board oversight; 503B outsourcing facilities register with the FDA and follow federal manufacturing standards (CGMP).
Has MedisourceRx received FDA warning letters?
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We found 2 regulatory records, the most recent dated Dec 12, 2025. Each is listed on this page with a link to the source document.
Sources
- https://news.hims.com/newsroom/building-our-pharmacy-operations-with-the-customer-in-mind
- https://www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/warning-letters/medisourcerx-717970-12122025
Researched 2026-09-26.