Pharmacology Flashcards
Primary metabolite of norepinephrine
Vanillymandelic acid
Age of FDA approval for irritability associated with ASD?
5-16 years old
Decrease in [neurotransmitter] is linked to episodic violence
Serotonin
Prednisone is the inducer of CYP ____, leading to decreased efficacy of diazepam
2C19
Erythromycin leads to diazepam toxicity due to CYP ____ induction
3A4
Genetic variability in CYP ____ could lead to more rapid metabolism of codeine to morphine
2D6
Best class of meds for kleptomania
SSRIs
Evidenced based med for clozapine induced sialorrhea
Glycopyrrolate (antimuscarinic)
T/F: Can botulinum toxin injections be used for clozapine induced sialorrhea?
True
Lipid profile f/u after starting zyprexa timeline
Obtain baseline, 3 months, and then annually
Inhibiting CYP2D6 would ____ (inc/dec) concentration of atomoxetine
Increase
Fluoxetine inhibits these CYP isoenzymes (4)
1A2, 2C, 2D6, 3A4
(1,2,2,3)
T/F: Lithium must be discontinued during pregnancy.
False, must weigh risk (fetal abnormalities) vs. benefit (preventing decompensation)
T/F: Recent MI is a relative contraindication to ECT.
True
T/F. ECT has absolute contraindications.
False. ECT only has relative contraindications.
Patient with SSRI withdrawal while tapering paroxetine should have paroxetine replaced with ____
Fluoxetine. Due to its longer half-life.
T/F: Topiramate causes greater cognitive impairment than gabapentin and lamotrigine
True
How should sertraline be adjusted after pt has shunts placed for portal hypertension secondary to liver dz
DECREASE the dose
Persistent pulmonary hypertension of the newborn is associated with this class of medications (2)
SSRIs and SNRIs
Neonatal abstinence syndrome is associated with this class of meds
Opioids
Risk for neural tube defects with VPA is as high as ___% in the first trimester
5
T/F: Cholinesterase inhibitors (donepezil, galantamine, rivastigmine) can lead to worsening bronchoconstriction in asthma, COPD
True
Benzo with half life of 100 hours, and therefore with high risk of daytime sedation
Flurazepam
Clozapine should be stopped and G-CSF or Gm-CSF therapy should begin once ANC falls below _______
1500/mm^3
Theophylline and haldol are metabolized by CYP ___
1A2
Fluvoxamine will inhibit/induce CYP 1A2
Inhibit
Citalopram, escitalopram, venlafaxine, and sertraline all weakly/strongly inhibit CYP 2D6
Weakly
Brexanolone treats this dx
Post partum depression
Brexanolone MOA
GABA modulator
If pt is started on brexanolone, what must provider do immediately?
Start continuous pulse ox
Risks when first starting brexanolone (2)
Sedation and sudden loss of consciousness
Physostigmine indication
Anticholinergic toxicity
Doxepin absolute contraindications (2)
urinary retention
narrow angle glaucoma
Acetylsalicylic acid (aspirin) can increase/decrease blood concentration of valproic acid
Increase
Carbamazepine can increase/decrease blood concentration of valproic acid
decrease
SSRI with biggest risk of fetal cardiac abnormalities
Paroxetine
Metronidazole can lead to increase in Qtc prolongation with antipsychotic use due to ____ inhibition
P450
How can disulfiram potentially lead to psychosis?
Inhibition of dopamine beta-hydroxylase –> increases dopamine concentration –> increased neurotransmission in mesolimbic system
How long to monitor patient after ketamine administration
2 hours
EEG changes in a pt who has a sz on olanzapine
Nonspecific changes
Increased beta waves on EEG can indicate use of these types of meds
benzos and barbituates
Must have special precautions with this drug for narcolepsy due to reputation as the “date rape drug”
Sodium Oxybate (salt of GHB)
Decreased alpha waves seen in pts taking these types of meds
Opioids
Addition of metoclopramide to an antipsychotic can lead to to this adverse reaction
NMS
Lithium and haldol together can lead to adverse reaction that resembles _____
NMS
Lithium and haldol combo can lead to this change in Qtc
Qtc prolongation
CYP ___ is responsible for 90% of metabolism for caffeine
1A2