Thrp: Psyc Flashcards
Fluoxetine
SSRI
inc t1/2
Worse Insomnia, sexual dis-fn, **anxiety/activation (avoid in PD/Anxiety tx), GI
d/c Sx start w/in1-3wks (longer t1/2)
SE: ++Seizures
Used in combo with Olanzapine in Bipolar but metabolic SE
Sertraline
SSRI: Starting Dose: 25-50mg (Geriatric=12.5mg) Dose range 50-200mg)
good anxiety 1st choice, *tx for PTSD
Worse Insomnia, Diarrhea, GI, anxiety/activation
SE: +sedation ++ Seizures
Breast feeding: Lowest infant SDC and fewest ADR
No dose adj for Renal Impairment
Paroxetine
SSRI
good anxiety 1st choice, *tx for PTSD
Worse Sedation, sexual dis-fn, anti-cholinergic effects, *WT gain, d/c-sx (must taper after 1 week)
SE: ++Sedation, ++Seizures ++AntiACH
1st trimester minimal cardiac defect risk
Breast feeding: Lowest infant SDC and fewest ADR
Fluvoxamine
SSRI
Worse Sedation
SE: ++Sedation, ++Seizures
Citalopram
SSRI: Starting dose=20mg (Geriatric 10mg) Dose range=20-60mg
Only SSRI good for HA
QRS/AT prolongation: Dose dependent: *NTE 40mg/day (20mg/day 60+yo or on omeprazole/cimetidine)
*Monitor: ECG, LFT (cleared by liver), K+,MG++)
SE: ++Sedation, ++Seizures **++Dose related Arrhythmias
Substrate for CYP2C19
Escitalopram
SSRI: (Dose 1/2 citalopram)
Only SSRI good for HA; good anxiety 1st choice
SE:
Vilazodone
Dual-acting 5-HT RUI/Partial 5HT1a AG (may help with sexual dys-fn SE)
NEW Rx
SE: GI (w/food), insomnia
Bupropion
Aminoketone: (Starting dose=75mg qd-bid):
2nd line agent Depression
Good in smoking cessation and parkinsons Dz, atypical depression, CV dz, alzheimer’s Dz (*NOT PD)
ADHD Tx: 1.5-3mg/kg max=6mg/kg/day divided BID
Less sexualy disfuntion: Add Rx late in day or switch to this if is a problem
SE: Nausea, dizzy, tremor, insomnia
++++Seizures- rare but not good for pts w/seizures
+AntiACh
DDI 2D6 inhibitor
Venlafaxine
SNRI: good 2nd line agent: QD-BID dosing
D/c-Sx in 7 days, worse d/c-sx (must taper after 1 week)
*tx for PTSD
*Dose dependent SE
Low dose: nausea/vomiting
High Dose: inc BP
SE: +AntiACh, + Sedation, ++Seizures, +Arrhythmais
Has mainly pharmacodynamic DDI
Desvenlafaxine
SNRI
*Dose dependent SE
Low dose: nausea/vomiting more than venlafaxine
High Dose: inc BP
SE: +AntiACh, + Sedation, ++Seizures, +Arrhythmais
Duloxetine
SNRI: BID dosing
Tx neuropathy: good or DM pts
N/D sedation,
SE: +Anti-ACh-mostly dry mouth
+ Orthostasis, and inc HR in supine/standing
Has mainly pharmacodynamic DDI
and 2D6 inhibitor
Trazodone
Triazolopyridines
Tx for sleep in PTSD
+++Orthostasis-alpha blocker
+++ Sedation-give at HS, ++Seizures, ++Arrhytmias
Priapism (prolonged errection_ rare but d/c and ER
Nefazodone
Triazolopyridines: 2nd liner
Less sexualy disfuntion: switch to this if is a problem
Liver toxicity - Monitor LFT bimonthly during 1st yr
++Sedation
SE: +AntiACH, ++Seizures, ++Orthostasis,
DDI: Potent 3A4 inhibitor
Amitriptyline
TCA
SE: ++++Sedation, ++++AntiACh, +++Orthostasis, ++++arrhythmias, +++Seizures
Doxepin
TCA
SE: ++++Sedation, +++AntiACh, ++Orthostasis, ++arrhythmias, +++Seizures
Clomipramine
TCA Lots of AE*
Used to Tx OCD AFTER 3 failed tires of SSRI
SE: ++++Sedation, ++++AntiACh, ++Orthostasis, ++++arrhythmias, ++++Seizures
Imipramine
TCA
Depression
ADHD (less effective) Dose 1mg/kg inc 0.5mg/kg max=3mg/kg divided BID
SE: +++Sedation, +++AntiACh, ++++Orthostasis, ++++arrhythmias, ++++Seizures
OD risk
Desipramine
TCA
Depression
ADHD (less effective) Dose 1mg/kg inc 0.5mg/kg max=3mg/kg divided BID
SE: +++Sedation, +++AntiACh, *+Orthostasis, +++arrhythmias, ++Seizures
good Pregnancy Rx Choice
Nortriptyline
TCA
SE: +++Sedation, +++AntiACh, +Orthostasis, +++arrhythmias, ++Seizures
Good Rx choice for pregnancy
Breast feeding: Lowest infant SDC and fewest ADR
Phenelzine
MAOI - never 1st line
SE: most orthostasis, sedation
Tranylcypromine
MAOI - never 1st line
Trasdermal Selegiline
MAOI - never 1st line
Lithium
Mood Stabilizer Bipolar (effective but less than VPA)
Other: Anti-depressant
Persistent aggression/hostility/mood lability Schizo Tx
Base line Tests: T’BEER P (initially and q12mo)
t1/2=~24hrs (steady-state = 1 wk) bridge with BDZ
DOSE= start 300mg BID-TID
(300mg = 0.2mEq/L)
GOAL = 0.6 - 1.2 mEq/L
*DO NOT d/c abruptly ->Sx occur more rapidly and more difficult to control
Early SE: Tremor, polyuria, lethargy/sedation
long term SE: Hypothyroidism, Fine hand tremor, wt gain, Teratogenic (ebstein anomaly) Breastfeeding (risk of hypothyroidism in baby et.c)
Narrow TI Rx: Neurotoxicicity, AND Serotonin syndrome with serotenergic Rx’s
SIGNS OF Toxicity= GO TO ER
Mirtazapine
TCA: 2nd liner: HS dosing
unique MOA: inhibits presynaptic alpa-2 receptors and pstsynaptic 5-HT
good adjunct for sleep
Add rx at HS to Tx sex-dis-fn
SE: +++Sedation- at lower doses
Wt gain (anti histaminic properties)
++AntiACh, ++Orthostasis, +arrhythmias
Has mainly pharmacodynamic DDI
CYP2D6 Substrates
Paroxetine, Sertraline, Desipramine, Nortriptyline, clozapine, Haloperidol (major), Thioridazine, Perphenazine, Propanolol, Metoprolol, Timolol, Tamoxifen, Atomoxetine
CYP3A3/4 Substrates
Statins, Alprazolam, Ethinyl estradiol, Cyclosporine, Buspirone, Quetiapine (major)
CYP1A2 Substrates
Caffeine, Clozapine (major)
CYP2C9 Substrates
Warfarin