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What Is Pharmaceutical Testing?

Pharmaceutical microbiology testing evaluates the microbiological quality of pharmaceutical ingredients, formulations and finished products. It helps identify microbial contamination, assess product quality and support compliance with applicable specifications and regulatory requirements.

Testing can be performed throughout the product lifecycle, from raw materials and manufacturing environments to finished products. Depending on the application, this may include microbial limits testing, sterility testing, bioburden testing, preservative efficacy testing and environmental monitoring.

These assessments help pharmaceutical manufacturers identify potential microbial risks, maintain quality throughout production and generate reliable data to support quality control and regulatory requirements.

Why Pharmaceutical Companies Choose Accugen

Accugen Laboratories is an FDA-registered lab that provides high-quality USP and cGMP-compliant microbiological testing for pharmaceutical manufacturers, drug product formulators and developers, and raw material suppliers. Our team is made up of qualified, experienced professionals who perform all tests in accordance with strict regulatory guidelines and laboratory conditions.

Tested and certified by experts

With decades of specialized experience and qualifications, our team of microbiologists ensures that every product receives the highest standard of testing.

Costs that make sense for your business

With a commitment to delivering world-class pharmaceutical testing, we ensure your products meet the highest standards at the best prices. 

Accurate results, delivered on time

Our streamlined processes and rigorous methodology ensure your products are tested precisely, and your time-to-market is never compromised.

Pharmaceutical Testing Services

Accugen Laboratories offers pharmaceutical microbiology testing services that ensure product stability, regulatory compliance, and reliable manufacturing performance through precise laboratory analysis. These tests include:

USP 60 Microbiological Examination of Non-Sterile Products: Tests for Burkholderia cepacia Complex

Screens pharmaceutical water systems for Burkholderia cepacia complex (BCC), an objectionable organism known to survive and proliferate in low-nutrient aqueous environments.

USP 61 Microbiological Examination of Non-Sterile Products: Microbial Enumeration Tests

Includes total aerobic microbial count (TAMC) and total combined yeast and mold count (TYMC).

USP 62 Microbiological Examination of Non-Sterile Products: Tests for Specified Microorganisms

Detects the following microorganisms:

  •  Staphylococcus aureus
  • Pseudomonas aeruginosa
  • Escherichia coli
  • Bile-tolerant Gram-negative bacteria
  • Clostridia species
  • Salmonella species
  • Candida albicans

USP 51- Antimicrobial Effectiveness Testing (AET) Or Antimicrobial Preservative Effectiveness Testing

This test is used to determine the presence of the following microorganisms:

  • Escherichia Coli
  • Staphylococcus Aureus
  • Pseudomonas aeruginosa
  • Candida albicans
  • Nocardia brasiliensis

Sterility Test USP 71

These include:

  • Direct inoculation
  • Direct immersion
  • Membrane filtration

LAL Bacterial Endotoxin Test

A test done to detect endotoxins and other pyrogens in drugs and medical devices.

Minimum Inhibitory Concentration Test (MIC/MLC)

The test determines the lowest concentration of an antibiotic or antimicrobial agent that prevents the growth of bacteria or fungi in vitro to help identify the most effective treatment.

Microbial Identification

This analysis is performed to detect and identify bacteria, yeast, fungus, and molds in pharmaceutical products.

Pharmaceutical Sectors We Support

Accugen provides pharmaceutical microbiology testing across different stages of product development and manufacturing. Our services help organizations monitor microbial quality, identify contamination risks and generate reliable data for quality and regulatory requirements.
✓ Biotechnology
We support biotechnology companies with microbiological testing throughout research, product development and manufacturing, helping identify contamination risks and maintain microbial quality.
✓ Innovative and Brand-Name Pharmaceuticals
Our testing services support pharmaceutical companies throughout product development and manufacturing, providing reliable microbiological data for quality control and product evaluation.
✓ Generic Pharmaceuticals
We help generic pharmaceutical manufacturers monitor microbial quality and product consistency using recognized testing methods and carefully controlled laboratory procedures.
✓ Active Pharmaceutical Ingredients (API)
Microbiological testing of APIs and raw materials helps identify potential contamination and assess microbial quality before materials enter the pharmaceutical manufacturing process.

How to Submit a Sample

1

Order a test kit

2

Collect your sample

3

Ship to the lab

4

Receive your results

What Our Clients Say

“
Accugen performs routine microbiological testing for our cosmetic and OTC products. They have a very friendly and attentive staff. All reports are sent to us in a timely manner. Very happy with their service and will continue to use them for the foreseeable future.
Maliha S.

“
I rate very highly of Accugen Laboratories Inc. and its personnel, who performs microbiological testing on our products. Very professional, knowledgeable, friendly and helpful. Their turnaround time exceeded our expectations. Stayed in contact before and after analysis. We will continue to use them for our testing.

Dr.Rounaq S

“
Highly professional, provide quality data and detailed reports. Great customer service. They really care about providing excellent services.Accugen is the best microbiology testing lab and we highly recommend it.

Iram Z.

A Trusted Microbiology Lab Since 1997

Accugen Laboratories, Inc. is an FDA-registered microbiological testing laboratory with 30 years of experience supporting organizations across a wide range of industries. Our experienced microbiologists combine scientific expertise with rigorous laboratory procedures to deliver reliable, consistent results.

Frequently Asked Questions

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What microbiology tests are required for pharmaceutical products?
Pharmaceutical products typically require microbial enumeration testing (USP 61), specified microorganism testing (USP 62), sterility testing (USP 71), bacterial endotoxin testing, and antimicrobial effectiveness testing (USP 51). The specific tests depend on whether the product is sterile or non-sterile and the applicable regulatory framework. Accugen Laboratories offers the full range of these USP-compliant pharmaceutical microbiology tests for manufacturers, formulators, and raw material suppliers.
What is included in microbial limit testing for pharma?
Microbial limits testing for non-sterile pharmaceutical products typically includes total aerobic microbial count (TAMC) and total combined yeasts and molds count (TYMC) in accordance with USP 61, along with testing for specified microorganisms under USP 62. The specific microorganisms evaluated depend on the product type, intended use and applicable requirements.
Which USP chapters apply to pharmaceutical microbiology?
Common USP chapters used in pharmaceutical microbiology include USP 51 for antimicrobial effectiveness testing, USP 61 for microbial enumeration, USP 62 for specified microorganisms, USP 71 for sterility testing and USP 85 for bacterial endotoxins. The applicable USP methods depend on the product type, formulation, intended use and specific testing requirements.
What sample types can be evaluated in pharmaceutical testing?
Pharmaceutical microbiology testing can be performed on raw materials, active pharmaceutical ingredients (APIs), finished drug products, in-process samples, equipment surfaces, and manufacturing environments. Both sterile and non-sterile dosage forms are evaluated, including liquids, solids, semi-solids, and injectables. Accugen Laboratories works with pharmaceutical manufacturers, drug product formulators, and raw material suppliers across these sample categories to support quality control at every stage of production.
How do results support pharmaceutical quality compliance?
Microbiological test results provide objective data confirming whether pharmaceutical products meet USP and cGMP specifications. This documentation is typically required for regulatory submissions and quality control programs. The tests also help identify the contamination source when the results fall outside acceptable limits.