The Gamma-Hydroxybutyric acid (GHB) Rapid Test detects Gamma-Hydroxybutyric acid (GHB) in beverage or urine sample above the cutoff concentrations 10μg/mL.

γ-Hydroxybutyric acid (GHB) is an endogenous metabolite in the brain and peripheral organs. It has many characteristics of a neurotransmitter and has been studied for potential therapeutic use in the treatment of narcolepsy, drug addiction, and symptoms of withdrawal and to induce anesthesia. However, GHB also is widely abused. At higher doses, GHB produces sedation and a trance-like state with loss of memory. Because it has little smell or taste, it can be ingested un-knowingly. This combination of properties has made GHB a drug used for drug-facilitated sexual assault (colloquially know as Date Rape), often administered to victims in beverages. A qualitative assay for GHB requires the dehydrogenation reaction to be pulled to completion by coupling to another reaction. GHB- DH catalyzes the reaction of GHB and NAD to produce NADH, and a diaphorase couple tetrazolium dye reaction results in the production of a purple dye complex.

GHB-DH catalyzes the reaction of GHB and NAD to produce NADH, and a diaphorase-coupled tetrazolium dye reaction results in the production of a purple dye complex.

Store as packaged in the sealed canister at 2-30°C. The test strips must remain sealed in the canister until use. DO NOT FREEZE. Do not use beyond the expiration date. Avoid direct exposure to sunlight.

Collect beverages in a clean and dry container.

Refrigerate beverage sample immediately if the sample cannot be tested within 2 hours. Bring refrigerated sample to room temperature and mix thoroughly before testing. The sample can be stored for up to 48 hours at 2-8°C. For prolonged storage, specimens may be frozen and stored below -20°C. Frozen specimens should be thawed and mixed before testing.

Use the color chart on the product pouch to interpret GHB levels at the indicated semi-quantitative GHB concentrations. The 0 μg/mL level indicates that no significant GHB is present, the 10 μg/mL level and the 50 μg/mL level indicates a presumptive positive.