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D(2) dopamine
receptor
Voltage-
dependent
P/Q-type
calcium channel
subunit
alpha-1A
Voltage-
dependent
L-type calcium
channel subunit
beta-1
Voltage-
dependent
calcium channel
subunit
alpha-2/delta-2
Sodium-
dependent
dopamine
transporter
Synaptic
vesicular amine
transporter
Solute carrier
family 12
member 3
Aromatic-L-
amino-acid
decarboxylase
Tyrosine
3-monooxygenase
Guanine
nucleotide-
binding protein
G(s) subunit
alpha isoforms
short
Dopamine
Ca
+
Thiethylperazine
Ca
+
Dopamine
Dopamine
Thiethylperazine
Thiethylperazine
L-Dopa
CO
2
L-Tyrosine
Tetrahydrobiopterin
O
2
Dihydrobiopterin
H
2
O
Na
+
Na
+
Pyridoxal
5'-phosphate
GDP
Gi signaling
cascade
Fe2+
Cytosol
Postsynaptic Neuron
Presynaptic Neuron
Cytosol
Synaptic Vesicle
Synapse
Thiethylperazine is a D2
receptor antagonist. D2
receptors in the mesolimbic
pathway are responsible for
producing symptoms in
psychosis
antipsychotic effect
Brain
Mesolimbic pathway
Blood vessel - blood brain
barrier
antiemetic effect
Thiethylperazine is taken
orally and absorbed from the
gastrointestinal tract
DRD2
CACNA1A
CACNB1
CACNA2D2
SLC6A3
SLC18A2
SLC12A3
DDC
TH
GNAS
Dopamine
Calcium
Thiethylperazine
Calcium
Dopamine
Dopamine
Thiethylperazine
Thiethylperazine
L-Dopa
Carbon dioxide
L-Tyrosine
Tetrahydrobiopterin
Oxygen
Dihydrobiopterin
Water
Sodium
Sodium
Guanosine
diphosphate
Gi signaling
cascade
DRD2
CACNA1A
CACNB1
CACNA2D2
SLC6A3
SLC18A2
SLC12A3
DDC
TH
GNAS
LDP
Ca
+
Tietilp
Ca
+
LDP
LDP
Tietilp
Tietilp
L-Dopa
CO
2
Tyr
BH4
O
2
BH3
H
2
O
Na
+
Na
+
Pyr-5'P
GDP
Gi si c
Fe2+
Cytosol
Postsynaptic Neuron
Presynaptic Neuron
Cytosol
Synaptic Vesicle
Synapse
Thiethylperazine is a D2
receptor antagonist. D2
receptors in the mesolimbic
pathway are responsible for
producing symptoms in
psychosis
antipsychotic effect
Brain
Mesolimbic pathway
Blood vessel - blood brain
barrier
antiemetic effect
Thiethylperazine is taken
orally and absorbed from the
gastrointestinal tract