Pharm Test 1 Spring 2016 Drug List BRIEF descriptions Flashcards
Famitidine
• H2 Receptor Antagonist • Acid reduction • Upper GI (GERD)
Omeprazole
• Proton Pump Inhibitor • Upper GI (GERD) drug
Mg(OH)2
• Antacid • Diarrhea side effect • Upper GI (GERD), not long-term
Al(OH)3
• Antacid • Constipation side effect • Upper GI (GERD), not long-term
CaCO3
• Antacid • Upper GI (GERD), not long-term
Sucralfate
• Gastric Mucosal protection • Becomes a paste in acidic environment, clings to mucosa • Upper GI
Bismuth Salicylate
• Antimicrobial properties • Preferentially binds to ulcerated sites in gastric mucosa • Upper GI • Affects absorption of other drugs because they get stuck
Misoprostol
• Prostaglandin E1 analog • Decreases H+ secretion • Increases mucus and bicarbonate secretion • INCREASE UTERINE CONTRACTIONS • Upper GI
Metoclopramide
• Antiemetic • Dopamine receptor antagonist • Enhances gastric motility • Upper GI
Ondansetron
• Antiemetic • 5-HT3 Serotonin antagonist in pharynx and stomach • Upper GI
Lubiprostone
• Stimulant laxative • Cl- channel • Lower GI
Loperamide
• Irritable Bowel Syndrome • Antidiarrheal • Mu-opioid receptor agonist slows motility • Negligible CNS effects • Risk of toxic megacolon
Alosetron
• Irritable Bowel Syndrome treatment • 5-HT3 receptor antagonist with high potency and duration • Reduces smooth muscle activity in GI • Mostly for recalcitrant IBS-related diarrhea in women • Risk of ischemic colitis (0.3%)
Sulfasalazine
- Inflammatory Bowel Disease (mostly ulcerative colitis, because more activity in the colon)
- Prodrug of 5-aminosalicylic acid (Mesalamine)
- Affets both cyclooxygenase and lipoxygenase inflammatory pathways and interferes with synth of cytokines
- Free radical scavenger
- Very little absorbed, works topically on wall of gut
- 40% pts cannot tolerate (diarrhea, HA, hypersens, BONE MARROW SUPPRESSION)
Prednisone (Glucocorticoids)
• IBD treatment • Rapid reduction in ulceration and initial remission of inflamm • Not good long term • SE: • BONE MARROW SUPPRESSION risk • Also pancreatitis, elevated LFTs, rash, fever, nausea
Infliximab
• Crohn’s mostly, but also some UC (because sulfasalazine mostly in colon) • Antibody to TNF-alpha, blocks inflammatory effects
Azathioprine
• Inflammatory Bowel Disease LONG TERM treatment • Anti-metabolites • SE: Bone marrow suppression, rashes, fever, nausea
Propyltiouracil
• Thyoamide • Hyperthyroid medication • Reduces iodide organification and iodotyrosine coupling • Reduces deiodination of T4 in periphery • Less birth defects, can be used in 1st trimester then swith to MMU • More hepatotoxicity than MMU
Methimazole
• Thyoamide • Hyperthyroid medication • Reduces iodide organification and iodotyrosine coupling • No second mechanism as with Propyltiouracil • More birth defects, so avoid in 1st trimester. Better for 2nd and 3rd trimesters of pregnancy because • Less hepatotoxicity than Propyltiouracil
Iodide
• Inhibit organification of iodine and hormone release (just like PTU and MMI) • Used in combo with PTU and ß-blocker in thyroid storm • Escape effect if used alone. Thyroid glands increase the expression of anion channels, and let in more iodide, so more can become hormones. • If there is no escape, can build up and become a goiter.
L-triiodothyronine (T3)
• Direct replacement in hypothyroidism • Very short t1/2
L-thyroxine (T4)
• Direct replacement for hypothyroidism • Longer t1/2 (7 days)
I-131
• Radioactive iodine • Enters thyroid cells and clogs up so that cannot make hormones • Best for thyroid storm
Perchlorate, Pertechnetate, Thiocyanate
• Anion inhibitors • Treatment for hyperthyroidism • SE: **APLASTIC ANEMIA!
Nitrous Oxide
• Natural Vasodilator and standard for inhaled anesthetics • Anesthesia AND analgesia
Desflurane
- Inhaled anesthetic and analgesic
- D
- D>S>E>I>H>M for MAC
- Preserves Cardiac Output (D,S,I) and vasodilates - good for MI patients
- Not affect baroreceptor response, maintains or increases heart rate (D,I)
• Cough, spasm (D,I)
Sevoflurane
- Inhaled anesthetic and analgesic
- DS>E>I>H>M for MAC
• Preserves Cardiac Output (D,S,I) via vasodilation
- Decreased baroceptor response, less increase in heart rate (S,E,H)
- Risk of Nephrotoxicity (S,E)
Isoflurane
- Most commonly used inhaled anesthetic and analgesic
- D>S>E>I>H>M for MAC
- Preserves Cardiac Output (D,S,I) through vasodilation
- Not affect baroreceptor response, maintains or increases heart rate (D,I)
- Cough, spasm (D,I)
- Most pulmonary diminished response to increased CO2 in blood (all inhaled do this to some degree) (I,E)
Enflurane
- Inhaled anesthetic and analgesic
- D
- D>S>E>I>H>M for MAC
• SEIZURES risk (no others have that listed)
- UTERINE contraction
- Decreased baroceptor response, less increase in heart rate (S,E,H) and greater decrease in myocardial contractility than others –> Decreased Cardiac Output (E,H)
- Most pulmonary diminished response to increased CO2 in blood (all inhaled do this to some degree) (I,E)
- Risk of Nephrotoxicity (S,E)
Halothane
- Inhaled anesthetic and analgesic
- D>S>E>I>H>M for MAC
- HEPATOTIXICITY
- Decreased baroceptor response, less increase in heart rate (S,E,H) and greater decrease in myocardial contractility than others –> Decreased Cardiac Output (E,H)
- Can have bradycardia and arrythmias
Methoxyflurane
• Inhaled anesthetic and analgesic • DS>E>I>H>M for MAC • Does not relax uterus
Sodium Thiopental
• Barbituate - GABAa receptor enhancement • Now use Propofol for beginning inhaled anesthesia
Propofol
• GABA-a receptor enhancer • Milk of amnesia - Hypnotic effect only, NO ANALGESIA • No antagonist • Cardioresp depression • Allergy with soy and egg administration
Etomidate
- Anterograde amnesia - NO ANALGESIA
- ETO CAN BE VETOED - there is an antagonist, unlike propofol
- Accumulates, so slows recovery
- No Cardioresp effects, good for pts at risk for hypotension
Ketamine
- Analgesia and Hypnotic state - possible hallucinations
- NMDA (Glutamate receptor for excitatory neuron) antagonist
- No resp depression
- BP might go up
- SE: Increase in muscle tone, might need muscle relaxant
Insulin Lispro
• Short-acting insulin • Rapid peak
Insulin Aspart
• Short-acting insulin • Rapid peak • Preparation inhibits clumping
Insulin Glulisine
• Short-acting insulin • Rapid peak • Affects downstream IRS-2 pathway
Regular Insulin
• Onset 30min • Peak 2-3hr • Lasts 5-8hrs • Slower peak w dimerized preparations
NPH or Isophane or Neutral Protamine Hagedorn Insulin
• Intermediate onset (2-5hrs) • Duration 4-12hrs • Usually paired with rapid or short-acting
Glargine Insulin
• Longest-acting insulin, “peakless” • Onset 1-1.5hrs • Max effect 4-6hrs • Lasts 11-24hrs • Admin 1x/day
Detemir Insulin
• Long-acting insulin • Onset 1-2hrs • Lasts up to 12hrs • Admin 2x/day
Metformin
• Biguanide • Affects target tissue cAMP-induced kinase activity • Liver - decrease gluconeogenesis, increase glyogen synthesis, decrease VLDL synth, decrease fatty liver accumulation • Muscle - increase Glc uptake • Adipose - Decrease FA breakdown • Slows both MACRO and MICROvascular changes (other diabetes drugs, mostly just micro)
Glipizide
• Sulfonylurea agonist • Increases ß-cell secretion of insulin • Requires functional ß-cells in pancreatic islets of Langerghans
Repaglinide
• Non-Sulfonylurea agonist • Same mechanism as sulfonylurea, different binding site, not bound so ACTS FASTER • Increases ß-cell secretion of insulin • Requires functional ß-cells in pancreatic islets of Langerghans
Pioglitazone
• Thiazolidenedione • Similar to metformin, sensitizes downstream target tissues • Peroxisome-proliferator-activated receptor ligand and ten modifiy gene expression of downstream proteins that deal with glucose and lipid metabolism, insulin transduction (GLUTs), adipocyte and tissue differentiation •
Exenatide
• GLP-1 receptor agonist • Acts like a natural incretin (usu released in gut to get pancreas to start releasing insulin when intestines first have food) • Depends on functional ß-cells • Only works in presence of glucose • Slows gastric emptying, increases satiety • Potentially increases number of ß-cells surviving, slowing disease process
Sitagliptin
• Dipeptidyl-Peptidase-4 (DPP-4) inhibitor • DPP4 typically metabolizes incretin (GLP) hormones in pancreas, so this stops that action and lets pancreas continue to release insulin • Glucose-dependent
Acarbase
• Competitive inhibition of channels that absorb disaccharides in S.I. • Taken with food • Extended use tends to upregulate natural receptors, and so effect lessens over time
Canagliflozin
• SGLT-2 channel inhibitor in proximal tubule of nephron • Reduces Glc-reabsorption by changing threshold for Glc urine concentration from 180mg/dL to about 70-90mg/dL • Causes fluid loss - weight loss might be transient • Can cause loss of electrolytes
Benzocaine
• Local anesthetic • Ester - PABA allergy • Short-acting
Procaine
• Local Anesthetic • Ester - PABA allergy • Short-acting, slower onset than benzocaine
Cocaine
• Local anesthetic • Ester - PABA allergy • Short-acting • TOPICAL ONLY - mucous membranes (nose and mouth) • Only local anesthetic that is a VASOCONSTRICTOR
Lidocaine
• Local anesthetic • Amide - Liver metabolism • Rapid onset • Medium-duration • Type IB antiarrythmic
Ropivacaine (and Bupivacaine)
• Local anesthetic • Amide - liver metabolism • Long-acting • Good alternative for Lidocaine-sensitive patients • S-isomer ONLY, which is the isomer that the heart does NOT have at its Na+ channels, therefore there are fewer cardio SE.
Tetrodotoxin
• Puffer fish toxin • Same affect as local anesthetics, but external block of the Na+ channel, so not use-dependent
Epinephrine
• Local anesthetic adjunct for vasoconstriction to reduce likelihood of systemic spread of anesthetic • DO NOT USE in areas of low vascularization - nose, ear pinna, glans of penis
Clonidine
• Adjunct for local anesthetic, as well • Acts on both fast and slow pain pathways • Inhibits feedback loop of Mu-opioid receptor on C-fibers, thereby reducing Substance-P transmission • Inhibits transmission of glutamate at Adelta fibers in dorsal horn
Diazepam
• Adjunct for local anesthesia • Chills patient out
Cimetidine
• H2 Receptor antagonist • Acid reduction • Upper GI drug • MORE SE than Famitidine (CYP3A4)
Things all Inhaled Anesthetic Agents do
- Decrease arterial Blood Pressure
- Blood flow to Kidney
- Blood flow to liver
- Depressed myocardial contractility
- Dose-dependent decrease in tidal volume and minute ventilation –> increase in arterial ppCO2
- Decrease ventilation response to hypoxia (chemoreceptors in brain)
- Most are bronchodilators (des and iso can cause spasm)
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