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Gamma-
aminobutyric
acid receptor
subunit beta-2
Gamma-
aminobutyric
acid receptor
subunit gamma-2
Gamma-
aminobutyric
acid type B
receptor
Gamma-
aminobutyric
acid receptor
subunit alpha-1
Cytochrome P450
2D6
Adenylate
cyclase type 1
Vesicular
inhibitory
amino acid
transporter
Voltage-
dependent
P/Q-type
calcium channel
subunit
alpha-1A
Multidrug
resistance-
associated
protein 4
Glutamate
decarboxylase 1
γ-Aminobutyric acid
cAMP
γ-Aminobutyric acid
Ca
+
Glutethimide
Glutethimide
L-Glutamic acid
Cl
-
γ-Aminobutyric acid
Ca
+
Morphine
Morphine
Glutethimide
Glutethimide
Cl
-
CO
2
ATP
PP
i
Codeine
Heme
Magnesium
Pyridoxal
5'-phosphate
Gi/o signalling
Glutamate
Metabolism
Hyperpolarization
Hyperpolarization leading to
reduced depolarization and
excitability. Decreasing
neuronal excitability has a
sedative effect
Presynaptic Neuron
Post Synaptic Neuron
Synaptic Vesicle
GABA binds to the GABA(A)
receptor in between the
alpha and beta subunits.
Glutethimide binds to an
allosteric site of the
GABA(A) receptor between the
gamma and alpha subunits.
Cytosol
Cytosol
Synapse
Hepatocyte
Glutethimide induces CYP 2D6
which when taken with
codeine converts higher
amounts of codeine to
morphine.
Endoplasmic Reticulum
Glutethimide is administered
as an oral tablet
Endoplasmic Reticulum
GABRB2
GABRG2
GABBR2
GABRA1
CYP2D6
ADCY1
SLC32A1
CACNA1A
ABCC4
GAD1
γ-Aminobutyric
acid
cAMP
γ-Aminobutyric
acid
Calcium
Glutethimide
Glutethimide
L-Glutamic acid
Chloride ion
γ-Aminobutyric
acid
Calcium
Morphine
Morphine
Glutethimide
Glutethimide
Chloride ion
Carbon dioxide
Adenosine
triphosphate
Pyrophosphate
Codeine
Gi/o signalling
Glutamate
Metabolism
Hyperpolarization