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Schedule Lag

Definition

The delay between first identification of an NPS in forensic seizures and its formal addition to a controlled substances schedule. In India, this typically takes 12-36 months via gazette notification. During the lag, the compound can be sold without NDPS Act liability, creating a window of legal commercial availability for pharmacologically dangerous compounds.

Related terms

Alpha-PVP (Alpha-Pyrrolidinopentiophenone)
The MDPV successor ('flakka') dominant in Florida 2014-2016; associated with excited delirium presentations and multiple fatalities. Identified in over 60 deaths in...
Cathinone
The natural beta-ketoamphetamine alkaloid from Catha edulis (khat) plant; the parent scaffold for the synthetic cathinone NPS class. The ketone group at...
EMCDDA Early Warning System
The EU mechanism under Council Decision 2005/387/JHA by which national focal points (forensic labs, clinical sites) report new NPS to the EMCDDA...
Federal Analogue Act (FAA)
21 USC 813; a provision of the US Controlled Substances Act declaring substances 'substantially similar' in structure or pharmacology to Schedule I...
Isotonitazene (ISO)
A benzimidazole-class novel synthetic opioid (nitazene family) estimated at ~500x the potency of morphine at the mu-opioid receptor. First identified in European...
MDPV (Methylenedioxypyrovalerone)
An alpha-pyrrolidinyl cathinone acting primarily as a dopamine/noradrenaline reuptake inhibitor. Central to the US 'bath salts' crisis 2011-2012; substantially more potent and...
Mephedrone (4-MMC)
4-Methylmethcathinone; the dominant first-wave synthetic cathinone, active as a mixed monoamine releaser/reuptake inhibitor. Class B UK since April 2010; Schedule I US...
Novel Psychoactive Substance (NPS)
A substance designed to mimic the effects of a controlled drug while falling outside the definition of any currently scheduled substance; identified...
Psychoactive Substances Act 2016 (UK)
UK catch-all legislation prohibiting supply, distribution, import, and export of any substance with psychoactive effects on the CNS, with exemptions for alcohol,...

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