CNS Units ABC Flashcards
Benzodiazepine with short half life but slow onset
Lorazepam (Ativan)
Benzodiazepine with long half life - works quickly
Diazepam (Valium)
Benzodiazepine with moderate half life and quick onset
Alprazolam
What benzos have highest abuse potential?
Ones with the quickest onset -
Xanax (alprazolam)
Valium (diazepam)
Drugs that cannot be combined with benzos
opioids
MOA of benzidiazepines
Enhance responses to GABA
SNRIs
Venlafaxine (Effexor)
Duloxetine (cymbalta)
First line treatment for depression
SSRIs
First line treatment for acute anxiety
benzodiazepines - BUT not for chronic anxiety
SSRIs
escitalopram (Lexapro) Paroxetine (Paxil) Citalopram (Celexa) Fluoxetine (Proazac) Sertraline (Zoloft)
BBW for SSRIs
May increase SI, especially in children/adolescents
MOA of SSRIs
Block reuptake of serotonin
symptoms of serotonin syndrome
confusion, agitation, clonus, fever, tremor, hyperreflexia.
SSRIs that are safe in pregnancy
Zoloft
Is buspar safe in pregnancy?
yes
sleep medication safe for pregnancy
melatonin
Anxiolytic
Buspar (buspirone)
Drug to drug interactions with Buspar
erythromycin, ketoconazole and grapefruit juice all increase levels of buspar.
MOA of buspar
Not a CNS depressant - MOA unknown
Benefits of buspar
No abuse
No sedation
disadvantages of buspar
takes at least a week for initial response and several more weeks for full effects.
Beta blocker used for performance anxiety
Propranolol (Inderal)
why does St. Johns wort have so many D2D interactions?
It induces 450CYP3A4
INDUCER - increases other drugs time in body
Risk of severe phototoxic skin reactions
St. John’s wort
Sedative benzodiazepines
Estazolam (ProSom)
temazepam (Restoril)
Flurazepam (Dalmane)
Safety for sedative benzos
short-term only (10 days)
wean slowly
Not for elderly
Non-benzo sedatives
eszopiclone (Lunesta)
zaleplon (Sonata)
zolpidem (Ambien)
Only sedative for long-term use
Lunesta
melatonin agonist - not for pregnancy
Ramelton (Rozerem)
Non-benzos pregnancy category C for anxiety or insomnia in pregnancy
Vistaril (Hydroxyzine)
Ambien (Zolpidem)
MOA of TCAs
Block reuptake of norepinephrine and serotonin
Common TCAs
amitriptyline
Imipramine
disadvanges/safety concerns for TCAs
Anticholinergic side effects -
Do not use with elderly or those with CV disease
Lethal with overdose
Advantages of TCAs
May help with pain and sleep
Atypical antidepressant
Bupropion (Wellbutrin)
Triazolopyridine (Trazodone)
Bupropion MOA
norepinephrine-dopamine reuptake inhibitor (NDRI)
boosts NE and Dopamine
what makes wellbutrin unique
It can be stimulating/energizing - can help with focus, libido, and motivation
Can bupropion be combined with an SSRI
yes - can be beneficial to reduce SE of SSRIs
Caution with bupropion (wellbutrin)
May increase seizures