Product Description

Norflurazepam 5mg

Norflurazepam 5mg (N-Desalkylflurazepam) is a long-acting benzodiazepine and a major active metabolite of flurazepam. It is sold primarily as a research chemical / novel psychoactive substance (NPS) and is not approved for medical use in any major country. A 5mg dose is considered a strong/common recreational or anxiolytic dose.

Pharmacology

Norflurazepam acts as a non-selective positive allosteric modulator of the GABA-A receptor, producing anxiolytic, sedative, hypnotic, muscle-relaxant, and anticonvulsant effects.

Key Characteristics:

• Half-life: Extremely long — 47 to 150+ hours (average around 70–100 hours)
• Onset (oral): 30–90 minutes
• Duration: Very prolonged due to slow elimination — effects and after-effects can last several days

This long half-life leads to significant drug accumulation with repeated dosing.

Effects at 5mg

At 5mg, users typically report:

• Strong anxiety reduction
• Pronounced sedation and drowsiness
• Muscle relaxation
• Mild to moderate amnesia
• Feelings of calm and relaxation

Because of its long duration, the sedative and cognitive effects can persist well into the next day or longer.

Safety Risks

• Accumulation: Repeated daily use at 5mg can cause the drug to build up in the body, leading to excessive sedation, cognitive impairment, and increased overdose risk.
• Respiratory Depression: Risk is heightened when combined with alcohol, opioids, or other CNS depressants — potentially life-threatening.
• Dependence & Withdrawal: High potential for physical dependence. Withdrawal can be prolonged and severe due to the extended half-life.
• Cognitive Impairment: Significant next-day grogginess, memory problems, and reduced coordination.
• Other Risks: Increased fall risk (especially in older adults), dizziness, and potential rebound anxiety/insomnia upon cessation.

Drug Interactions & Contraindications

• Dangerous Combinations: Alcohol, opioids, other benzodiazepines, gabapentinoids, or any sedatives.
• Contraindicated in individuals with respiratory conditions, liver impairment, history of substance dependence, depression/suicidal thoughts, or those operating vehicles/machinery.
• Not recommended during pregnancy or breastfeeding.

Legal Status (as of 2026)

Norflurazepam is controlled or banned in many countries, including the UK (Psychoactive Substances Act), Germany, Canada, and others. In the US, it exists in a legal gray area but is generally considered illegal for human consumption.

Important Note: This is a neutral, educational overview based on pharmacological data and user reports. Norflurazepam is an unregulated research chemical with very limited clinical safety data. Its extremely long half-life makes it particularly risky compared to shorter-acting benzodiazepines. This information does not encourage use.

Additional Information