San Antonio's Premier Toxicology & Diagnostic Testing Provider

Tri-State Toxicology offers

Experience fast, confidential, and compliant testing services tailored for individuals, employers, and healthcare providers across San Antonio.

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San Antonio’s Premier Toxicology Lab for Individuals and Industry

About Us

At Tri-State Toxicology Lab, we specialize in fast, accurate drug and health testing services for both individuals and organizations. Whether you're a walk-in client, a construction company, a rehab facility, or a government agency, our certified lab delivers results you can count on. With cutting-edge testing technology, HIPAA-compliant protocols, and a focus on both convenience and compliance

About Us

San Antonio’s Premier Partner for Drug Testing and Molecular Services

Drug Testing Pre-Employment Drug Screening Only

We offer fast and confidential walk-in testing with no appointment needed plus comprehensive pre employment screening for businesses of all sizes. Choose from standard 5 or 10-panel tests—or build a custom drug panel that includes whatever substances matter to you. All samples are processed in our CLIA certified lab under strict chain of custody protocols, with secure, prompt reporting.

Drug Testing Pre-Employment Drug Screening Only

STD Testing

We offer comprehensive testing for major STDs—including chlamydia, gonorrhea, and trichomoniasis—as well as many others. Choose individual tests or convenient multi infection panels tailored to your needs. All screenings are confidential, and results are delivered securely and promptly.

STD Testing

Respiratory Panel (RPP)

We offer rapid molecular testing for COVID-19 and influenza A/B—with results typically in 24 hours, and same day results available upon request. All tests use certified PCR methods for high accuracy.