HNN Flashcards
What class of drug is L-dopa?
anti-parkinsons drug
What is the mechanism of action of L-dopa?
- percursor molecule for dopamine that can cross the blood brain barrier
(dopamine cannot cross the blood brain barrier)
What disease is L-dopa used to treat?
Parkinson’s disease
What are the side effects of L-dopa?
Common:
- nausea & vomiting (due to L-dopa in periphery)
What is the mechanism of action of L-dopa in the periphery?
L-dopa is converted to dopamine and then adrenaline/noradrenaline, which increases
What drug can be given with L-dopa to minimise side-effects?
Carbidopa
What class of drug is Selegilline?
Monoamine Oxidise B Inhibitor (MAOBi)
What is the mechanism of action of Selegilline
reduces the breakdown of dopamine in the CNS, especially in the corpus striatum
What is disease is Selegilline used to treat?
Parkinson’s disease
What class of drug is entacapone?
Catechol-o-methyl transferase inhibitors (COMTi)
What is the mechanism of action of entacapone?
hen taken together with levodopa (L-DOPA) and carbidopa, entacapone stops catechol-O-methyltransferase from breaking down and metabolizing levodopa, resulting in an overall increase of levodopa remaining in the brain and body
What disease is entacapone used to treat?
Parkinson’s disease
What are the side effects of entacapone?
Abdominal pain Nausea Vomiting Fatigue Dry mouth Back ache
What are the side effects of selegilline?
nausea, hallucinations, confusion, depression, loss of balance, insomnia, increased involuntary movements, agitation, slow or irregular heart rate, delusions, hypertension, new or increased angina pectoris, and syncope
What class of drug is Pramiprexole and ropinirole?
Dopamine agonist
What is the mechanism of action of pramiprexole and ropinirole?
Binds directly to D2/3 dopamine recptors
What disease are pramiprexole and ropinirole used to treat?
Parkinson’s disease
What drugs can be used to treat Parkinson’s disease?
L-dopa selegilline entacapone pramiprexole ropinirole
What class of drugs are barbiturates and benzodiazepines?
- anxiolytics
- sedatives (hypnotics)
What is the mechanism of action of barbiturates?
GABA agonist at higher doses
What is the mechanism of action of benzodiazepines?
Increases the efficiency of GABA to decrease excitability of neurons
What diseases do barbiturates and benzodiazepines treat?
Anxiety and insomnia
What class of drug is clozapine?
antipsychotic drug
What is the mechanism of action of clozapine?
serotonin receptor antagonist
Binds to GABAb receptors
What disease does clozapine treat?
schizophrenia
What class of drug is fluoxetine?
selective serotonin reuptake inhibitors (SSRIs)
What is the mechanism of action of fluoxetine?
Prevents the re-uptake of seroronin at the post-synaptic membrane
What disease does fluoxetine treat?
Depression