Cannabis Flashcards
(36 cards)
Routes of admin
smoking, oral, dabbing
Absorption
20-30% absorption from smoking, increased by holding breath
Metabolism
1st pass metabolism with oral
Metabolism enzymes
FAAH and MAGL
2 primary metabolites
11-hydroxy-THC; THC-COOH
Distribution
everywhere as it is highly lipophilic, flies across BBB
Half-life
plasma is 2 hrs, other tissue is 25-30 hours, detectable for 1-3 weeks
Hashish
processing of plant to yield dried resins
Hash oil
boiled with solvent, THC as high as 60-70%
Spice/K2
synthetic cannabinoids, much more powerful than THC
Active agents
delta-9-THC, delta-8-THC, cannabidiol, active metabolites
4 stages of intoxication
buzz, high, stoned, come-down
Cognitive deficits
decrease in attention, episodic and working memory, deficits in motor tasks
Psychotomimetic high-dose effects
pseudo-hallucinations, synesthesia, paranoia, agitation, disorganized thoughts, confusion
Executive function high-dose effects
increased impulsivity, impaired judgment, slower, RT, pronounced motor deficits
Reinforcing
squirrel monkey self-administration; VTA activation by GABAergic disinhibition
Cannabinoid receptors and 3 effects
metabotropic; inhibit cAMP, VGCC, activate K+ opening
CB1 receptors
heavy in brain, also expressed in PNS
CB2 receptors
in microglia and neurons in brain, but mostly in periphery and immune system
Endocannabinoids
anandamide and 2-AG
Anandamide
particle CB1 agonist
2-AG
full agonist at CB1 and CB2
3 types of signaling
retrograde signaling, non-retrograde signaling, neuron-astrocyte signaling
Endocannabinoids regulate
analgesia, hunger, fear extinction