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Wayne Shared "Pharmacology Bliss 6/2/2024" - 76 Picmonics

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Pharmacology Bliss 6/2/2024

Diphenhydramine (Benadryl)
Targets: Type 1 IgE mediated Hypersensitivity
Motion Sickness
Antitussive
Antiemetic
Fx: Sedation
Anticholinergic effects
Narrow Angle Glaucoma
Dry Mouth & Tachycardia
Also blocks Alpha-Adrenergic, Cholinergic and Serotonergic Receptors
Used to Tx Torticolis (or Benztropine)
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First Generation Antihistamines
Mechanism of Action
Histamine H1 Receptor Antagonist
Indications
Allergies
Nausea and Vomiting
Motion Sickness
Anaphylaxis
Drug Names
Diphenhydramine (Benadryl)
Promethazine (Phenergan)
Chlorpheniramine
Side Effects
Sedation
Anticholinergic Effects
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2 mins
Second Generation Antihistamines
Indications
Allergies
Mechanism of Action
Lipophobic
Histamine H1 Receptor Antagonist
Drugs
Azelastine + Fluticasone (Dymista)
Intranasal Spray
Cetirizine (Zyrtec)
Loratadine (Claritin)
Fexofenadine (Allegra)
Considerations
Fewer Anticholinergic Effects
Fewer CNS Effects
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2 mins
Promethazine (Phenergan)
Mechanism
Histamine H1 Receptor Antagonist
Weak Dopamine Antagonist
Indications
Nausea and Vomiting
Motion Sickness
Side Effects
Respiratory Depression
Sedation
Anticholinergic Effects
Extrapyramidal Symptoms
Considerations
Use Large Bore IV
Monitor for Tissue Necrosis
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2 mins
H2 Receptor Blocker
"-tidine" Suffix
Indications
Gastroesophageal Reflux Disease (GERD)
Peptic Ulcer
Mechanism
Block Histamine H2 Receptors
Parietal Cells
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52 secs
Cimetidine and Famotidine (H2 Receptor Blockers)
-tidine Suffix
Mechanism
H2 Receptor Blocker
Indications
Suppress Gastric Acid Secretion
Side Effects (All)
Pneumonia
Side Effects - Cimetidine
Anti-androgen Effects
CNS Changes
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2 mins
H2 Receptor Blocker Side Effects
Side Effects
Decrease Creatinine Clearance
Cimetidine
Crosses Blood-Brain Barrier
Anti-Androgen
Inhibits Cytochrome P450
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1 min
Proton Pump Inhibitors (PPIs)
"-prazole" Suffix
Indications
Zollinger-Ellison Syndrome
Gastritis
Peptic Ulcer
Gastroesophageal Reflux Disease (GERD)
Mechanism
Inhibit H+/K+/ATPase
Side Effects
Hip fracture
Pneumonia
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2 mins
Dinoprostone and Misoprostol
Mechanism
Prostaglandins
Indications
Promote Cervical Ripening
Prevent GI Ulcers
Medical Abortion
Side Effects
Fetal Distress
Hyperstimulation of Uterus
Considerations
Vaginal Insertion
Give Before Induction of Labor
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2 mins
Sucralfate (Carafate)
Mechanism
Creates Protective Barrier
Indications
GI Ulcers
Side Effects
Constipation
Considerations
Require Acidic Environment
Give on Empty Stomach
Oral Suspension Available
May Decrease Absorption of Other Meds
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2 mins
Bismuth subsalicylate
Aspirin based
Trade name: Pepto-bismol
Drink plenty of fluids
Dark stools
Contraindicated for children with chickenpox
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36 secs
Magnesium Hydroxide
Clinical Use
Antacid
Osmotic Laxative
Side Effect
Diarrhea
Hypermagnesemia
Hyporeflexia
Hypotension
Cardiac Arrest
Consideration
Chelating Agent
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1 min
Aluminum Hydroxide
Clinical Use
Antacid
Side Effects
Constipation
Hypophosphatemia
Osteodystrophy
Proximal Muscle Weakness
Seizures
Considerations
Chelating Agent
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52 secs
Calcium Carbonate
Clinical Use
Antacid
Dietary Supplement
Side Effects
Hypercalcemia
Milk-Alkali Syndrome
Rebound Hyperacidity
Considerations
Chelating Agent
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1 min
Metoclopramide
Indications
Antiemetic
Promotility Agent
Mechanism
Increased Resting Tone
Antagonist at D2 Receptor
Side Effects
Parkinsonian Symptoms
Galactorrhea
Contraindication
Small Bowel Obstruction
Parkinson's Disease
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2 mins
Aprepitant
Mechanism
Substance P Antagonist
Inhibits NK1 (Neurokinin-1) Receptors in Brain
Clinical Use
Antiemetic
Chemotherapy-induced Nausea and Vomiting
Side Effects
Fatigue
Diarrhea
Constipation
Headache
Anorexia
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1 min
Ondansetron
Indications
Postoperative Vomiting
Chemotherapy-induced Nausea and Vomiting
Mechanism
5-HT3 Serotonergic Antagonist
Centrally-acting Antiemetic
Side Effects
Headache
Constipation
QT Prolongation
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1 min
Anti-emetics
Chemotherapy + Operative nausea
Dopamine Receptor Antagonists
Serotonin antagonists
ondansetron
Metoclopramide
Neurokinin (NK1)
****prepitants (aprepitant and fosaprepitant)
Antimuscarinics
Scopolamine
Motion sickness / hyperemesis gravidarum
Anti-histamines
Diphenhydramine (Benadryl)
Promethazine (Phenergan)
Meclizine (Antivert)
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Buspirone
Indications
Generalized Anxiety
Mechanism of Action
Releases Dopamine and NE
Stimulates 5-HT1A receptors
Side Effects
Low Side Effect Profile
Safer with Alcohol than Other Anxiolytics
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1 min
Sumatriptan
Mechanism of Action
Short Half-Life
5-HT Agonist
Inhibits Trigeminal Nerve Activation
Induces Vasoconstriction
Indications
Migraine
Cluster Headache
Side Effects
Increased Risk of Serotonin Syndrome
Paresthesias
Coronary Vasospasm
Contraindication
Prinzmetal's Angina
Coronary Artery Disease (CAD)
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3 mins

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