Autonomic Sympathetic Drugs: Indirect Sympathomimetics Flashcards
catecholamines
epinephrine, norepinephrine, dopamine
adrenergic nerve terminal is the site of action of
indirect sympathomimetics
Site of action of indirect sympathomimetics
adrenergic nerve terminal
tyrosine is transported to
the vesicle containing neurotransmitters in the presynaptic nerve terminal
Which amino acid is a precursor to catecholamines
tyrosine
Tyrosine is converted to
L-DOPA
L-DOPA is converted to
dopamine
metyrosine prevents
conversion of tyrosine to L-DOPA
metyrosine is a
tyrosine analog
dopamine is converted to norepinephrine in the
vesicle containing neurotransmitters in the presynaptic neuron
norepinephrine transporter (NET)
norepinephrine transporter (NET) transports norepinephrine (and dopamine) back into the presynaptic neuron
dopamine transporter (DAT)
dopamine transporter (DAT) transports dopamine back to the presynaptic neuron
cocaine inhibits
cocaine inhibits
cocaine can cause
- agitation
- pupillary dilation
- hypertension
- tachycardia
- nasal mucosal atrophy or septal perforation
- coronary vasospasm and myocardial ischemia
cocaine can cause nasal mucosal atrophy or septal perforation due to
vasoconstriction