FenSal™ is an immunoassay test for detecting drugs in oral fluid. It uses a chromatographic absorbent device where drugs bind to antibody-dye conjugates. A colored line at the Test Region (T) indicates a negative result, while the absence of this line suggests a potential positive result. A Control Region (C) line confirms proper test execution.

Oral tests like FenSal Rapid™ detect recent drug use more quickly (3-5 minutes), are easier to administer, and are less invasive compared to urine tests, which require specific facilities and may involve privacy concerns.

About 1 to 2 mL of saliva is needed. Collection typically takes 3 to 5 minutes, and placing the tip under the tongue is recommended.

Collection time varies but typically requires 3 to 5 minutes. Hydration and proper positioning (head lowered, tip under the tongue) can help.

Yes, dehydration can impact saliva production. Hydrating 15 minutes before the test can improve results.

Yes, it can dilute or mask drug presence. Avoid eating, drinking, smoking, or using oral hygiene products for 15 minutes before the test.

A negative result shows a colored line in the Test Region (T); a positive result lacks this line. The Control Region (C) line should always appear if the test is valid.

This is a standard design in many drug tests to indicate negative results. Training and orientation materials explain this feature.

Results should appear within 3-5 minutes. If no result is visible after 5 minutes, the cassette tip can be submerged in the buffer solution (provided) until color appears in all 4 channels.

Line intensity or width does not affect result interpretation. Detailed guidance is included in the package insert and training materials.

FenSal™ detects 9 drugs and can be expanded to include additional drugs based on demand. The 9 drugs include: fentanyl (FTY), oxycodone (OXY), phencyclidine (PCP), methamphetamine (MET), cocaine (COC), amphetamines (AMP), methadone (MTD), opiates (MOP), and cannabinoids (THC). The Chain of Custody (F-CoC) form lists additional clinical drugs that can be confirmed.

Aim to send the sample to FedEx within 12 hours, with confirmation results available within 72 hours after receipt at the lab.

The cassette remains viable until the expiration date, typically two years from the manufacturing date.

The 200 ng/mL cutoff prioritizes recent use detection rather than residual levels. Lower thresholds are used for precise laboratory methods during the confirmation process.

Currently, FenSal™ has a test for Xylazine. Other drugs are under consideration, with a development timeline of 4-5 months for new tests.