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Autoantibody to the Presynaptic Calcium Channel on Motor Neurons
Inhibits Acetylcholine (ACh) Release at Neuromuscular Junction
Paraneoplastic Syndrome
Small Cell Lung Cancer
Symptoms
Proximal Muscle Weakness
Improves with Muscle Use
Autonomic Symptoms
Extraocular Muscle Sparing
2 mins
Lamotrigine
Indications
Seizure Treatment
Bipolar Disorder
Mechanism of Action
Blocks Voltage-Gated Na+ Channels
Side Effect
Stevens-Johnson Syndrome
1 min
Lidocaine
Mechanism
Blocks Na+ Channels
Indications
Ventricular Arrhythmia
Anesthetic
Side Effects
Paresthesias
Seizures
Respiratory Depression
Drowsiness
Consideration
Anesthetic Effects Extended with Epinephrine
1 min
Local Anesthetic Overview
Indications
Minor Procedures
Epidurals
Mechanism of Action
Blocks Na+ Channels
State Dependent
Combined with Vasoconstrictors
Infected Tissue Requires Higher Dose
Drugs
Esters
Amides
Side Effects
Arrhythmias
Cardiotoxicity
1 min
Myasthenia Gravis
Mechanism
Antibodies to Acetylcholine Receptor
Symptoms
Ptosis
Diplopia
Weakness with Muscle Use
Respiratory Death
Thymus Associated
Treatment
Acetylcholinesterase Inhibitors
Plasmapheresis
Thymectomy
1 min
Nondepolarizing Neuromuscular Blocking Drugs
Names Include "Cur"
Competitive Antagonists
Acetylcholine Competition
Reversal of Blockade
Neostigmine, Edrophonium
1 min
Phenytoin
Indications
Status Epilepticus
Tonic-Clonic Seizures
Mechanism of Action
Blocks Na+ Channel Activation
Inhibition of Glutamate Release
Class IB Antiarrhythmic
Side Effects
Teratogenic
Macrocytic Megaloblastic Anemia
Induce Cytochrome P450
Drug-induced Lupus
Neuropathy
Hirsutism
Gingival Hyperplasia
1 min
Risperidone (Risperdal)
Mechanism
Atypical Antipsychotic
Indications
Schizophrenia
Bipolar Mania
Autism-Associated Irritability
Side Effects
Extrapyramidal Symptoms
Hyperprolactinemia
Gynecomastia
Galactorrhea
Amenorrhea
Prolonged QT
Considerations
Intramuscular Long Acting (Depot) Form
2 mins
Succinylcholine
Indications
Inducing Paralysis
Mechanism of Action
Neuromuscular Blocking Drugs
Motor Nicotinic Receptor
ACh Receptor Agonist
Depolarization
Phases of Action
Phase I (Paralysis Non-reversible)
Phase II (Paralysis Reversible)
Neostigmine (Reversal Agent)
2 mins
Topiramate
Indications
Seizure Treatment
Migraine Prophylaxis
Mechanism of Action
Increase GABA Action
Blocks Voltage-Gated Na+ Channels
Side Effects
Kidney Stones
Weight Loss
Sedation
1 min
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