Quality Assurance

Accredited Pharmacy with PCAB

The Pharmacy Compounding Accreditation Board (PCAB) sets standards and evaluates compounding facilities based on quality and safety criteria to ensure the highest standards. Preston’s Compounding Pharmacy is PCAB accredited, because we believe that quality assurance, patient safety, and continuous improvement matters.

Quality Testing with ARL Bio Pharma

ARL Bio Pharma provides the highest level of laboratory quality testing for the pharmaceutical industry. FDA inspected and ISO certified, ARL Bio Pharma partners with Preston’s Compounding Pharmacy bringing excellence to products potency and sterility.

ARL’s Potency Testing Benefits

Potency testing measures the concentration of the active pharmaceutical ingredients, ensuring they match the intended amount.

ARL Bio Pharma ensures patient safety by

Verifying the sterility of injectables, identifying the presence of microbials and endotoxins, and testing container closure to confirm sterility and stability.

They maintain regulatory compliance by

Providing independent third party verification of compliance with United States Pharmacopeia <797> and <795> and being an FDA 503B outsourcing facility.

ARL provides quality assurance & consistency by

Establishing compounding process controls, confirming accuracy and precision of drug preparation, and ensuring filter sterilization does not reduce drug potency.

They possess professional credibility by

Providing documentation references for regulatory audits and patient and provider questions and supporting sales tools that demonstrate dedication to quality.

ARL Bio Pharma offers expert guidance by

Interpreting potency test results for actionable improvement and staying up to date on the most current regulatory guidelines and USP updates.

ARL separates themselves from competition by

Maintaining current FDA inspections and ISO certifications, possessing state-of-the-art facilities with sterility testing suites, and providing 24/7 monitoring of laboratory conditions.

Providing quality & safety through rigorous processes

Ingredient Verification

Using pharmaceutical-grade raw materials from reputable suppliers

Quality Testing

Conducting stability & potency tests to confirm the integrity of compounded medications

Sterile Environments

Ensuring contamination-free conditions for medications like injectables and IVs


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