Neuropsychiatric Meds - Quiz 8 Flashcards
What should be done in the first 5 minutes of a seizure?
Rule out everything else
ABC’s
Check Blood Sugar & Labs
What should be done in the First Phase (5-20 min) of a Seizure?
Give any Benzo
What should be given in the Second Phase (20-40 min) of a Seizure?
Fosphenytoin
Valproic Acid
Keppra
What should be done in the Third Phase (40-60 min) of a Seizure?
Repeat any Second Line Therapy
or
Anesthetic Dose of Thiopental, Propofol, Versed, or Pentobarbital
How do Calcium Channel Blockers work as Anticonvulsants?
Blocks T-Type Ca Channels in Thalamus
What is a major consideration with using Carbamazepine & Oxacarbazepine?
Drug Interaction - CYP inducers that reduces their own affects along with Versed & Propofol
What electrolyte should be checked when using the -azepines?
Sodium Level - risk for Hyponatremia
What are common side effects of -azepines?
Dizziness
PONV
Sedation
Why was Oxcarbazepine created?
Prevent Auto-Induction of Carbamazepine
How does Oxcarbazepine compare to Carbamazepine?
Same Side Effects, but LESS Drug Interactions & Better tolerated
What is different about the Pharmacokinetics of Phenytoin?
Non-Linear
Need much smaller dose adjustments
Why was Fosphenytoin created?
Prodrug for IV Administration
Can be given Safer & Faster
What are the Side Effects of Phenytoin?
Gingival Hyperplasia
Nystagmus
Vitamin K Deficiency
Arrhythmias
Hypotension
Osteoporosis
Bleeding
Ataxia
What can Phenytoin cause in Pregnancy?
Cleft Palate & Lip
Slowed Growth
Mental Deficiency
Congenital Heart Disease
What is the Advantage & Disadvantage of using Lamotrigine?
Autoinducer, but very LOW drug interactions, except when given with Valproic Acid
What happens if Lamotrigine is given with Valproic Acid?
Steven-Johnson Syndrome
What is the main concern with Zonisamide?
Increased risk for Kidney Stones
What is the advantage of using Locosamide?
Less Side Effects, Drug Interactions, and No CYP effects
What is the ONLY indications for Clobazam (Onfi)
Seizures
HIGH RISK for Withdrawal
Which Benzo has the longest duration?
Diazepam & Clonazepam d/t High Lipophilicity
Higher Lipophilicity = Faster Onset
What is the biggest risk associated with Vigabatrin?
Permanent Vision Loss
What is the advantage of using Gabapentin?
Neuropathy Pain Control
Not Protein Bound
No Drug Interactions
Excreted Unchanged
What is the biggest concern with Gabapentin?
Post-Op Sedation
Severe Respiratory Distress when given with Opiates
What is Pregablin used for?
Neuropathy
Seizure
Anxiety
How does Pregablin compare to Gabapentin?
Similar, but risk for Ataxia
What pregnancy category risk does Valproic Acid have?
Category D - X
What are the main concerns related to Valproic Acid?
Thrombocytopenia
↑Ammonia
Liver Toxicity
Which Anti-Seizure meds are Glutamate Blockers?
Felbamate
Topiramate
Perampanel
How does Topiramate work?
Inhibits Sodium, AMPA, and Carbonic Anhydrase
&
Enchances GABA
What are the main concerns with using Topiramate?
Psychomotor Slowing
Depression
Agitation
Loss of Appetite
What is the Black Box warning for Perampanel?
Life-Threatening Behavioral Effects
Agression
Hostility
Homicidal
What are the main side effects of Perampanel?
Dizziness & Threats
How does Levetiracetam work?
Inhibits Calcium via SV2A Protein to reduce Hyperexcitability
What are the advantages with using Levetiracetam?
No Protein Binding
Short Half-Life
No Drug Interactions
What are the side effects of Levetiracetam
General Anti-Seizure Side Effects
Accidental Injury
Convulsions
Cognitive Impairment
How does Baclofen work?
Hyperpolarization to reduce Calcium, Glutamate, Motor Neuron Activity
↑Potassium Conduction
Blocks Substance P
What happens when Baclofen is abruptly stopped?
Severe Withdrawal
Hallucinations
Agitation
Seizures
How does Tizanidine work as a Skeletal Muscle Relaxant?
Alpha-2 Agonist w/ Anti-Cholinergic Effects
How does Dantrolene work as a Skeletal Muscle Relaxant?
Blocks Ryanodine to reduce Calcium from Sarcoplasmic Reticulum
What is the Black Box warning for using more than 800 mg/day of Dantrolene?
Diarrhea
&
Liver Toxicity
What are the main concerns with using Skeletal Muscle Relaxants?
Oversedation
&
Withdrawal
Which drugs are Sedative Hypnotics?
Z-Drugs
Ramelteon
Suvorexant
Melatonin
Valerian Root
What are the Disadvantages of using Sedative Hypnotics?
No Restorative / REM Sleep
&
Sleep Eating, Fighting, and Walking
Which meds are SSRIs?
Citalopram
Fluoxetine
Paroxetine
Sertraline
Escitalopram
Fluvoxamine
Which meds are Tricyclic Antidepressants?
Amitriptyline
Clomipramine
Desipramine
Doxepin
Imipramine
Nortriptyline
How do Tricyclic Antidepressants work?
Inhibits Serotonin & Norepi Reuptake
Anticholinergic
1A Antiarrhythmic
What are the adverse effects of Tricyclic Antidepressants?
Anticholinergic Effects
&
QT Prolongation & Arrhythmias
What should be done for a Tricyclic Antidepressant overdose?
Give Sodium Bicarb to treat Acidosis
Most Serotonin Receptors are ________, while some are _______
Most Serotonin Receptors are G-Coupled, while some are 5-HT3 Antogonist
Which Serotonin Receptors are Inhibitory?
1 & 5
What are the concerns with SSRIs?
Hyponatremia
Thrombocytopenia
Suicidality
Arrhythmias
Serotonin Syndrome
N/V
Weight Fluctuations
What do Neuroleptic Malignant Syndrome & Serotonin Syndrome have in common?
HTN
Tachycardia
Tachypnea
Hyperthermia
Diphoresis
Hypersalivation
Mental Problems
Increased Muscle Tone
What are the differences between Neuroleptic Malignant Syndrome & Serotonin Syndrome?
NMS:
HYPO-reflexia w/ Normal Pupils & Bowel Sounds
SS:
HYPER-reflexia & Clonus w/ Dilated Pupils & Hyperactive Bowels
What causes Neuroleptic Malignant Syndrome and when is its onset?
Dopamine Antagonism
Happens in 1-3 days
What causes Serotonin Syndrome & when is its onset?
Serotonergic Agents
Occurs in < 12 hrs
Which meds are Serotonin Norepi Reuptake Inhibitors (SNRIs)?
Duloxetine
Venlafaxine
Desvenlafaxine
Levomilnacipran
What are the Adverse Effects of SNRIs?
Serotonin Syndrome
Liver Toxicity
HTN
Insomnia
Tremor
What kind of med is Bupropion?
Dopamine and Norepi Reuptake Inhibitor (DNRI)
Which meds are 5HT2A Antagonists?
Mirtazepine
&
-azodone
What are the concerns with 5HT2A Antagonists?
Highly Sedating
Increased Appetite
Severe Liver Damage
What is Nuedexta used for?
Treats Pseudobulbar Affect - Inappropriate Laughing/Crying
How does Nuedexta work?
Uses Quinidine to Increase Dextromethorphan to inhibit NMDA receptors
What are the concerns with using Nuedexta?
QT Prolongation
Lupus
Thrombocytopenia
Anemia
What does Lithium do?
Stabilizes Mood by altering Sodium Transport since it looks like Sodium
What can occur w/ Lithium Toxicity?
DI
Tremors
Arrhythmias
Hypothyroidism
Syncope
Weight Gain
What is associated w/ the Mesolimbic Dopamine Pathway?
Schizophrenia
&
Psychosis
What is associated w/ the Mesocortical Dopamine Pathway?
Depression
&
Mood Disorders
What is associated w/ the NigrostriatalDopamine Pathway?
Extrapyrimidal Symptoms
&
Tardive Dyskinesia
What is associated w/ the Tuberohypophyseal Dopamine Pathway?
↑Prolactin
How do Antipsychotics work?
S2/D2 Blockade
Anticholinergic
Antihistamine
Alpha-2 Blockade
What is the Black Box warning for Antipsychotics?
Dementia related Death
&
Agranulocytosis (Clozaril)
Patients with Parkinsons have a deficiency in __________
Patients with Parkinsons have a deficiency in DOPAMINE
Which meds are Dopamine Analogs?
Carbidopa/Levodopa/Entacapone
How does Carbidopa/Levodopa/Entacapone work?
Carbidopa: False Dopamine
Levodopa: Dopamine Precursor
Entacapone: Blocks COMT
What are the adverse effects of Dopamine Analogs?
Psychosis
Hallucinations
Hypotension
Syncope
GIB
Which meds are Dopamine Agonists?
Pramipexole
Ropinirole
Rotigotine
Bromcriptine
Apomorphine
Which Anticholinergics are used for Parkinsons?
Benztropine
&
Triheyxphenidyl
Which MAOB Inhibitors are used for Parkinsons?
Rasaligine
&
Selegiline
Which Alzheimer’s meds are Acetylcholinesterase Inhibitors?
Donepezil
Galantamine
Rivastigmine
Which Alzheimer’s meds is a NMDA Antagonist?
Memantine
When can Post-Op Delirium & Cognitive Impairment occur?
Up to 1 Year Post-Op
What is the best strategy to prevent Post-Op Delirium?
Avoid Opioids, Benzos, Hypnotics, etc..
What was found in the 2018 STRIDE Trial regarding Post-Op Delirium?
Limiting Sedation Levels provide NO SIGNIFICANT benefit
How should Post-Op Delirium be managed?
Use 1x LOW dose Antipsychotics ONLY IF patient is at risk for harming self or others
Benzos worsen Delirium