Final Exam Flashcards
Drug for Motion Sickness
Scopolamine: Prevents nausea stimuli at CTZ, decreases GI secretions, slows smooth muscle contraction
Adverse Effects: Anticholinergic, Impaired cognition
Dopamine Antagonists
promethazine (Phenergan): Blocks dopamine2 receptors
Adverse Effects: Anticholinergic effects, extrapyramidal reactions, drowsiness, photosensitivity
Serotonin Receptor Antagonists
Ondansetron (Zofran): Blocks serotonin receptors in the GI tract, CTZ, and the vomiting center
Adverse Effects: Headache, Diarrhea, Dizziness, Constipation, Fever,
Serotonin syndrome
Opioids Used for Diarrhea
loperamide (Imodium): Decreases intestinal motility; Decreases fluid secretion into the intestine.
Adverse Effects: Dizziness
Osmotic Laxatives
Sodium salts, Magnesium salts, Polyethylene glycol: Draws water into the intestinal lumen. Fecal mass softens and swells.
Adverse Effects: Dehydration, sodium retention.
Stimulant Laxatives
Bisacodyl (Dulcolax), Senna (Senokot): Stimulate intestinal motility and increase water in the intestine.
Adverse Effects: Cramping/nausea, Red/brown urine (Senna), Fluid/electrolyte imbalances.
Bulk-forming Laxatives
Psyllium (Metamucil):Similar to dietary fiber
Adverse Effects: Esophageal obstruction, Intestinal obstruction.
Surfactant Laxatives
Docusate (Colace): Alter surface tension of stool. Allows increased water to enter feces.
Histamine2-Receptor Antagonists
famotidine (Pepcid): Block H2 receptors. It decreases the volume of gastric juices and decreases ion concentration.
Proton Pump Inhibitors
Omeprazole (Prilosec), Pantoprazole (Protonix): Bind to the hydrogen-potassium ATPase enzyme system of the parietal cell. Inhibit the secretion of hydrochloric acid.
Adverse Effects: Interfere with the liver metabolism of other meds. Can potentially exacerbate zinc deficiency. Hypomagnesemia.
Other Antiulcer Drugs
Sucralfate (Carafate): Promotes ulcer healing.
Adverse Effects: Almost none; constipation.
Narrow-Spectrum Penicillins
Penicillin G: Effective against gram-positive and a few gram-negative bacteria.
Least toxic of all antibiotics; Few side effects, Allergic reactions.
Penicillinase-Resistant Penicillins
Methicillin: Effective against gram-positive bacteria
Treats: Endocarditis, Meningitis, Bacteremia, Skin, and respiratory infections.
Broad-Spectrum Penicillins
Amoxicillin: Same antimicrobial spectrum as Penicillin G + increased activity against certain gram-negative bacilli
Treats: Haemophilus influenzae, Escherichia coli, Salmonella
Penicillins (Combined with Beta-Lactamase Inhibitors)
Amoxicillin/clavulanic acid (Augmentin), Piperacillin/tazobactam (Zosyn): Beta-lactamases are enzymes produced by bacteria that break open the beta-lactam ring, inactivating the beta-lactam antibiotic.
Therapeutic Uses of Cephalosporins
First Generation: Cephalexin (Keflex), Cefazolin (Ancef).
Second Generation: Cefoxitin (Mefoxin)
Third Generation: Ceftriaxone (Rocephin)
Fourth Generation: Cefepime (Maxipime)
Glycopeptide
Vancomycin: Inhibits cell wall synthesis, Effective against gram-positive MRSA.
Tetracyclines
Bacteriostatic Inhibitor of Protein Synthesis. Inhibit protein synthesis. Prevents bacterial growth & replication. Does not cause outright death. Broad-spectrum antibiotics
Aminoglycosides
Gentamicin: Bactericidal Inhibitors of Protein Synthesis. Effects limited to gram-negative bacilli. Parenteral Therapy.
Fluoroquinolones
ciprofloxacin (Cipro), levofloxacin (Levaquin): Broad-spectrum agent, Inhibit bacterial DNA gyrase (the enzyme needed for DNA supercoiling)
Adverse Effects:
MILD; GI problems, Nausea, Vomiting, Diarrhea
CNS effects; Dizziness, Headache, Confusion
Tendon rupture; May cause Candida infections as a result of treatment
Sulfonamides
sulfamethoxazole with trimethoprim (Bactrim or Septra): First drugs available for systemic treatment of bacterial infections. Inhibit the bacterial synthesis of folic acid. Used for UTIs
Adverse Effects: Hypersensitivity Reactions, Hematologic Effects, Kernicterus, Renal Damage
Nitroimidazoles
Metronidazole (Flagyl): Disrupts DNA and protein syntheses in bacteria and protozoa, Bacteriocidal
Adverse Effects: Anaphylaxis, GI distress, Disulfiram-like reaction.
Drugs for Hypothyroidism
Levothyroxine (Synthroid): Synthetic preparation of thyroxine (T4). Conversion to T3.
Adverse Effects: Rare! Acute overdose = thyrotoxicosis may develop. Educate patient about s/sx of overtreatment. Symptom diary.
Drugs for Hyperthyroidism
Propylthiouracil (PTU); Methimazole (Tapazole): Inhibits production of new thyroid hormone. Inhibits the conversion of T4 to T3.
Adverse Effects: Agranulocytosis, Hypothyroidism, Acute Liver Injury
Types of Insulin
Rapid Acting: Insulin Lispro
Short Duration: Regular Insulin
Intermediate Duration: NPH Insulin
Long-acting: Insulin Glargine
Combination Insulin: Humulin 70/30
Inhalation of Insulin
Afreeza: Technosphere insulin-inhalation system. Fine powder of regular insulin inhaled by lungs. Replaces mealtime insulin.
Adverse Effects: Hypoglycemia, Decreased lung function, Increased risk of lung cancer, Cough/Sore Throat.
Oral Hypoglycemics
Sulfonylureas
Glinides
Biguanides- Metformin
SGLT2 Inhibitors-Gliflozins
Sulfonylureas
Glipizide (Glucotrol), Glyburide (DiaBeta): These medications are sencond generation. They work by promoting insulin release by the pancreas.
Adverse Effects: Hypoglycemia, Cardiovascular Toxicity.
Glinides
Repaglinide (Prandin): Stimulate pancreatic insulin release. They bind to the Glucagon Like Peptide-1 receptor and stimulate glucose-dependent insulin release from the pancreatic islets, as described above. They do not usually cause hypoglycemia
Adverse Effects: Hypoglycemia
Especially with liver dysfunction patients. Headache, Dizziness, Jitteriness, GI distress
Biguanides
Metformin (Glucophage): ○ Decrease hepatic production of glucose from stored glycogen. Use for type 2 diabetes.
Adverse Effects: Decreases appetite, Nausea/Diarrhea, Vitamin Deficiencies, and Lactic Acidosis.
SGLT2 Inhibitors (Gliflozins)
Empagliflozin (Jardiance): Decreases blood glucose by causing the kidneys to remove sugar from the body through urine.
Adverse Effects: Urinary tract infections, Increased urination, Elevated LDL, Increased risk of bone fractures, Should be held before surgery to decrease the risk of DKA.
GLP-1 Agonists
Exenatide (Byetta): Slows gastric emptying, and stimulates the glucose-dependent release of insulin. Inhibits postprandial release of glucagon, and suppresses appetite
Adverse Effects: Hypoglycemia, Pancreatitis, Rick of Thyroid C cell tumors
Hyperglycemics
Glucagon: Increase blood glucose by stimulating glycogenolysis
***IV/PO glucose is preferred for the treatment of hypoglycemia if available and able to deliver
Medications that Stimulate Alpha1 Receptors
Epinephrine
Norepinephrine
Dopamine
Medications that Stimulate Beta1 Receptors
Epinephrine
Norepinephrine
Dopamine
Dobutamine
Medications that stimulate Beta2
Albuterol
Adrenergic Agonists #1
Epinephrine: Stimulates Alpha1+2, Beta1+2. Restore cardiac function following cardiac arrest, and bronchodilation for asthmatics. Elevate blood pressure, and overcome AV block
Treatment of choice for anaphylactic shock (IM)
Adverse Effects: Hypertensive Crisis, Dysrhythmias, Angina Pectoris, Tissue necrosis with extravasation, Hyperglycemia
Adrenergic Agonists #2
Dopamine: Beta1; Alpha1. Receptor specificity. Used for shock, heart failure, and acute renal failure.
Adverse Effects: Tachycardia, Dysrhythmias, Anginal pain
Adrenergic Agonists #3
Dobutamine: Selective activation of beta1 receptors. Used for heart failure.
Adverse Effects: Tachycardia, Dysrhythmia, Angina
Anticholinergic Side Effects
Hot as a Hare
Dry as a bone
Blind as a bat
Red as a beet
Mad as a hatter
“Can’t see can’t pee, Can’t spit can’t shit”