A Guide to Pharmaceutical Product Testing
Analytical testing is a critical function for any company involved in pharmaceutical manufacturing. The analytical department truly sits at the heart of what we do, bringing together science, quality, and compliance to make sure every product released is safe and effective. The work of pharmaceutical product testing supports every stage of the product journey, from research and development to manufacturing, quality assurance, and regulatory approval. By providing clear, reliable data, we help turn scientific ideas into trusted pharmaceutical products.
The Central Role of Analytical Services in Pharmaceutical Manufacturing
In many ways, the analytical department is the backbone of the organisation. It connects people, processes, and purpose with one goal in mind: protecting patients and improving lives.
Initially, I worked in the lab executing a wide range of analytical tests myself. Now, my role is to oversee and support all our laboratory’s analytical activities within the stability team, focusing on a robust programme of pharmaceutical products testing.
My team works in parallel with the validation team to ensure integrity, regulatory compliance, and operational efficiency throughout our operations. This focus is essential for all successful pharmaceutical testing.
Core Responsibilities in a Pharmaceutical Testing Laboratory
The role is diverse and dynamic. It ranges from supervising analytical testing and ensuring data accuracy to troubleshooting unexpected results. I am also responsible for reviewing and approving analytical results, methods, and protocols. A key part of this involves conducting investigations to identify the root cause of any out-of-specification (OOS) or atypical findings.
Ensuring Product Integrity Across Diverse Dosage Forms
At our Athens site, our pharma testing activities cover a wide variety of dosage forms. These include oral solutions, suspensions, tablets, capsules, and a range of materials requiring semi solid product testing.
Our goal is to confirm that every product is exactly what it claims to be. It must be free from unexpected interactions between ingredients and, ultimately, safe for patients. We have to verify its identity, purity, potency, and stability in full compliance with Good Manufacturing Practice (GMP) and all relevant regulatory standards.
The Importance of GMP Compliance in Manufacturing Testing
A critical task for me is confirming that the analytical team works in accordance with its standard operating procedures (SOPs). These need to be amended as and when regulatory guidelines are updated to ensure we remain in compliance.
Adhering to our SOPs and GMP requirements guarantees that all our manufacturing testing is robust, traceable, and scientifically defensible. This rigorous approach is non-negotiable for any form of pharmaceutical product testing.
Common Analytical Techniques Used in Pharma Testing
Much of our analytical work relies on chromatographic techniques, primarily High-Performance Liquid Chromatography (HPLC) and Ultra-High-Performance Liquid Chromatography (UPLC), alongside UV analysis.
But that is not all. Other routine tests include dissolution tests on dosage forms, whether these are tablets, capsules, or oral suspensions. If a medicine does not dissolve properly after the patient takes it, they will not get its full therapeutic benefit.
Investigating Out-of-Specification (OOS) Results
One of the most fascinating aspects of my work involves investigating those unexpected or anomalous results. It is like detective work. Sometimes the problem is obvious: perhaps an equipment malfunction, a trapped air bubble, or a procedural deviation. Or maybe it is an operator error. Something as simple as not closing an oven door properly can lead to a temperature drop, affecting retention times on a liquid chromatography column, for example.
In the real world, problems will always arise, but what matters most is how they are addressed. Careful and thorough investigation and root cause analysis are essential for continuous improvement and regulatory compliance. It contributes to solving those problems and ensuring that patients will always be given medicines that meet all quality standards.
Building Expertise and Mentoring in Pharmaceutical Analysis
In my daily routine, communication with the analysts is incredibly important, both from a leadership standpoint and from a mentoring perspective. I want to share my knowledge and help them develop their own analytical intuition. My years in the lab gave me real insight. I understand the challenges they face, and when I see one of the team puzzling over something, I just want to say, ‘Relax. Think about it, and I am here to help you.’
