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52 Cards in this Set
- Front
- Back
Bacteriostatic drugs? |
Erythromycin, Clindamycin, Sulfmethoxazole, Trimethoprim, Tetracycline, Chloramphenicol (We're ECSTaTiC about bacteriostatics)
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Bacteriocidial drugs?
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Vancomycin, Floroquinolone, PCN, Aminoglycosides, Cephalosporin, Metronidazole (Very Finely Proficient At Cell Murder)
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- Blocks Cell Wall Synthesis by Cross-linking?
- Blocks Peptidogylcan synthesis? - Disrupt Bacterial Cell Membranes? - Blocks Nucleotide Synthesis? |
Cell Wall - PCN, Ampicillin, Tiracillin, Peperacillin, Imipenem, Aztreonam, Cephalosporin
Peptidoglycan - Bactracin, Vancomycin Cell Membranes - Polymyxins Nucleotide Synthesis - Sulfa/TMP |
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- Blocks DNA Topoisomerases?
- Block mRNA synthesis? - Block protein synthesis at 50S ribosome? - Block protein synthesis at 30S ribosome? |
DNA - Floroquinolone
mRNA - Rifampcin 50S Chloramphenicol, Macrolide, Clindamycin, Streptogramin (Quinupristi, Dalfopristin), Linezolid |
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PCN? Types? Penicillinase-Sensitive?
- Mechanism? - Clinical Use? - Toxicity? |
PCN G - IV, PCN V - Oral
M - Binds PCN-Binding Protein, Blocks transpeptidase cross-linking of cell wall, Activate autolytic enzymes, Penicillinase-Sensitive C - Bactericidal for gram positive cocci & rods, gram negative cocci, spirochetes T - Hypersensitivity Rxn, Hemolytic Anemia |
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Methicillin, Nafcillin, Dicloxacillin?
Penicillinase-Sensitive? - Mechanism? - Clinical Use? - Toxicity? Methicillin Specifically? |
Penicillinase-Resistant PCN (bulkier R-group)
M - Same as PCN C - S. Aureus (except MRSA - altered PBP target site) - USE NAF FOR STAPH! T - Hypersensitivity Rxn, Methicillin - Interstitial nephritis |
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Ampicillin, Amoxicillin? Type of Drugs? Penicillinase-Sensitive? With Clavulanic Acid?
- Mechanism? - Clinical Use? - Toxicity? |
Aminopenicillins
M - Same as PCN, Penicillinase Resistant With Clavulanic Acid to enhance spectrum AMPed up PCN C - Extended-spectrum PCN - gram positive and gram negative rods (H. influenze, E. Coli, L. monocytogenes, P. Mirabilis, Salmonella, Enterococci) Aminopenicillins HELPS kill enterococci T - Hypersensitivity rxn, Ampicillin rash, Pseudomembraneous Colitis |
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Ticarcillin, Carbenicillin, Piperacillin? Penicillinase-Sensitive? With Clavulanic Acid?
- Mechanism? - Clinical Use? - Toxicity? |
M - Same as PCN, extended spectrum
C - Pseudomonas and gram negative rods, Penicillinase susceptible, use with Clavulanic Acid (Beta-Lactamase Inhibitor) TCP - Takes Care of Pseudomonas T - Hypersensitivity Rxn |
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Cephalosporin?
- Mechanism? - Clinical Use? 1st Generation? 2nd Generation? 3rd Generation? 4th Generation? - Toxicity? With Ethanol? With Aminoglycosides? |
M - Beta-lactam drugs that inhibit cell wall synthesis but are less susceptible to penicillinases, bactericidal
1st Gen - Cefazolin, Cephalexin - gram positive cocci (Proteus mirabilis, E. Coli, K. Pneumoniae) - PEcK 2nd Gen - Cefoxitin, Cefaclor, Cefuroxime - Gram-positive cocci (H. Influenze, Enterobacter aerogenes, Neisseria, Proteus mirabilis, E. Coli, Klebsiella pneumoniae, Serratia marcescens) HEN PEcKS 3rd Gen - Ceftriaxone, Cefoxamine, Ceftazidime - serious gram negative infections resistant to Beta-lactams, meningitis 4th Gen - Cefepime - Pseudomonas & gram-positive organisms T - Hypersenstivity Rxn (PCN) With Ethanol - Disulfram With Aminoglycosides - Nephrotoxic |
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Aztreonam? Synergistic with What?
- Mechanism? - Clinical Use? - Use in who? - Toxicity? |
M - monobactam resistant to B-lactamases, inhibits cell wall synthesis (binds PBP), Synergistic with Aminoglycosides
C - Gram Negative Rods (Klebsiella, Pseudomonas, Serratia), NOT for gram positives or anaerobes U - PCN-allergic patients, renal insufficient patients T - occasional upset stomach |
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Imipenem/Cilastatin, Meropenem? Resistant to what? Cilastatin Importance?
- Mechanism? - Clinical Use? - Toxicity? |
M - Broad spectrum, B-lactamase-resistant Carbapenem, Imipenem - give with Cilastatin (inhibits renal dihydropeptidase I - decreases inactivation in renal tubules) - Meropenem is resistant to inactivation
The kill is LASTIN with ciLASTIN C - Gram positive cocci, gram negative rods, anaerobes ... USE IN ENTEROBACTER T - GI Distress, skin rash, CNS (seizures) - fewer seizures in Meropenem |
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Vancomycin?
- Mechanism? - Resistance? - Clinical Use? - Toxicity? |
M - inhibits cell wall mucopeptide formation by binding D-ala D-ala portion of cell wall precursors, bactericidal
Resistance - with amino acid change of D-ala, D-ala to D-ala, D-lac U - serious, gram positive, multi-resistant organisms, including S. Aureus & C. Difficle (Pseudomembraneous coilitis) T - Nephrotoxicity, Ototoxicity, Thrombophlebitis, diffuse Flushing (Red Man Syndrome - avoid with antihistamine) Does NOT have many problems |
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Protein Synthesis Inhibitors?
30S? 50S? |
30S - Aminoglycosides (Streptomycin, Gentamicin, Tobramycin, Amikacin - BACTERICIDAL)), Tetracycline (BACTERIOSTATIC)
50S - Chloramphenicol, Clindamycin (BACTERIOSTATIC), Erythromycin (BACERTIOSTATIC), Lincomycin (BACTERIOSTATIC), Linezolid (VARIABLE) Buy AT 30, CCELL (sell) at 50 |
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Aminogycosides?
Which Drugs? - Mechanism? - Clinical Use? Not useful against what? Synergistic with what? Which for bowel surgery? - Toxicity? With what? |
Gentamicin, Neomycin, Anikacin, Tobramycin, Streptomycin (Mean GNATS canNOT kill anaerobes)
M - Bactericidal, inhibits formation of initiation complex and cause misreading of mRNA - requires O2 (NO ANAEROBES) C - Severe gram negative rod infections - synergistic for beta-lactam antibiotics, Neomycin for bowel surgery T - nephrotoxic (esp with Cephalosporin), ototoxic (esp with Loop Diuretics), tetratogen |
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Tetracycline, Doxycycline, Demeclocycline, Minocycline?
Which can be used in Renal Patients? Don't take with what? - Mechanism? - Clinical Use? - Toxicity? Not safe in what? Don't use in children why? |
M - BACTERIOSTATIC - binds to 30S and prevent attatachment of aminoacyl-tRNA
* Can use Doxycycline in Renal patients (eliminated in feces) * Can't take with milk, antacids, iron-containing preparations (divalent cations inhibit absorption in gut) C - V. Cholera, Acne, Chlamydia, Ureaplasma Urealyticum, M. Pneumoniae, Tulermia, H. Pylori, B. Burgdorferi (Lyme Disease), Rickettsia VACUUM THe BedRoom T - GI Distress, discoloration of teeth and bone growth inhibition in children, photosensitivity, DON'T USE IN PREGNANCY |
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Macrolides? What are they?
- Mechanism? - Clinical Use? In PCN-allergic patients? - Toxicity? Which has the greatest effect on heart? Interaction with what drugs? |
Erythromycin, Azithromycin, Clarithromycin
M - Inhibits protein synthesis by blocking translocation (binds 23S rRNA of 50S subuntil) BACTERIOSTATIC C - URIs, Pneumonia, STDs, Streptococcal infections (when patient allergic it PCN), Mycoplasma, Legionella, Chlamydia, Neisseria T - Prolonged QT interval (esp Erythromycin), GI Discomfort, Acute Cholestatic Hepatitis, Eosionphilia, Skin Rashes * Increases serum concentration of theophyllines, oral anticoagulants |
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Chloramphenicol?
- Mechanism? - Clinical Use? - Toxicity? In babies? |
M - Inhibits 50S peptidyltransferase activity BACTERIOSTATIC
C - Meningitis (H. Influenze, N. Meningitis, S. Pneumnoia) T - Anemia (dose-dependant), aplastic anemia (dose-dependant), gray baby syndrome (babies lack UDP-glucoronyl transferase) |
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Clindamycin?
- Mechanism? - Clinical Use? - Toxicity? |
M - Blocks peptide bond formation at 50S ribosomal subunit BACTERIOSTATIC
C - anaerboic infections T - pseudomembraneous coilitis, fever, diarrhea |
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Sulfonamides?
- Mechanism? - Clinical Use? For UTI? - Toxicity? In babies? Hemolysis when? - Effect on other drugs? |
M - PABA Antimetabolites - inhibit Dihydropteroate Synthetase (BACTERIOSTATIC)
C - Gram Positive, Gram Negative, Nocardia, Chlamydia, SMX (Triple Sulfa) for UTI T - Hypersensivity rxn, hemolysis with G6PD deficiency, nephrotoxic (tubulointerstitial nephritis), photosensitivity, kernicterus (babies) * Displaces other drugs from albumin (Warfarin, etc.) |
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Trimethoprim?
- Mechanism? - Clinical Use? - Toxicity? Decrease how? |
M - inhibits bacterial dihydrofolate reductase (BACTERIOSTATIC)
C - With Sulfa (TMP-SMX) for UTIs, Shigella, Salmonella, Pneumocystis jiroveci pneumonia T - Megablastic anemia, leukopenia, granulocytopenia (can give Folate to decrease) |
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What are examples of Sulfa drugs?
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Sulfa - Sulfasalazine, Sulfonyureas, Thiazide, Acetazolamide, Furosemide
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Floroquinolones? Which is a Quinolone?
- Mechanism? Don't take with what? - Clinical use? - Toxicity? |
- floxacin drugs & Enoxacin (Floroquinolones), Nalidixic Acid (Quinolone)
M - Inhibits DNA Gyrase (topoisomerase II) BACTERIOCIDAL, Don't take with antacids C - Gram negative rods of GU and GI infections, Neisseria, some gram positives T - GI upset, superinfections, skin rashes, headache, dizziness, NOT in pregnant women & children, tendonitis, tendon rupture, leg cramps, myalgia floroquinoLONES hurt attachments to your BONES |
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Metronidazole?
- Mechanism? - Clinical Use? With what for H. Pylori? - Toxicity? |
M - Forms toxic metabolites in the bacterial wall that damage DNA (BACTERICIDAL, ANTIPROTOZAL)
C - Treats Giardia, Entamoeba, Trichomonas, Gardnerella vaginalis, Anaerobes (below diaphragm), *Use with Bismuth, Amoxicillin or Tetracycline for "triple therapy" for H. Pylori T - Disulfram-like rxn with alcohol, headache, metallic taste GET GAP on the Metro |
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Polymyxins?
- Mechanism? - Clinical Use? - Toxicity? |
M - Binds to cell membranes of bacteria (disrupts osmotic properties), cationic, basic proteins that act like detergents
MYXins MIX up Membranes C - Resistant gram-negative infections T - Neurotoxicity, acute renal tubular necrosis |
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Prophylaxis for M. tuberculosis? Treatment?
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P - Isoniazid
T - Rifampin, Isoniazid, Pyrazinamide, Ethambutol (RIPE for treatment) |
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Prophylaxis for M. avium?
Treatment? |
P - Azithromycin
T - Azithromycin, Rifampin, Ethambutol, Streptomycin |
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Prophylaxis for M. leprae?
Treatment? |
P - NONE
T - Dapson, Rifampin, Clofazimine |
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What are the ant-TB drugs? Second line therapy?
Side effects of all drugs? Of Ethambutol? |
Streptomycin, Pyrazinamide, Isoniazid (INH), Rifampin, Ethambutol -
* INH-SPIRE (Inspire) Cycloserine (2nd line therapy) ALL hepatoxic Ethambutol causes optic neuropathy (red-green color blindness) |
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Isoniazid?
- Mechanism? - Clinical Use? - Toxicity? |
M - decreased synthesis of mycolic acids
C - M. tuberculosis (treatment & prophylaxis) T - Neurotoxicity, hepatotoxicity, (Pyridoxine - Vit B6 can decrease neurotoxicity) |
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Rifampcin
- Mechanism? - Clinical Use? - Toxicity? |
M - Inhibits DNA-dependant RNA polymerase
C - M. tuberculosis, delays resistance to Dapson when treating Leprosy, Meningococcal prophylaxis in children after H. Influenze exposure 4 R's - RNA Polymerase Inhibitor, Revs up microsomal p450, Red/orange body fluids, rapid resistance if used alone |
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Treatment for MRSA? VRE?
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M - Vancomycin
V - Linezolid, Streptogamin |
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Prophylaxis of Meningococcal infection? Gonorrhea? Syphilis? Recurrent UTIs? P. jiroveci pneumonia? Endocarditis (after surgery or dental procedures)?
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M - Rifampin, Minocycline (second line)
G - Ceftriaxone S - Benzarhine PCN G UTI - TMP/SMX PCP - TMP/SMX, Pentamidine (aerosol) Endocarditis - PCN |
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Antibiotic Resistance for...
PCN/Cephalosporin? in MRSA & PCN-Resitant S. Pneumoniae? Amingoglycosides? Vancomycin? Chloramphenicol? Macrolides? |
P - B-lactamase cleavage of B-lactam ring
MRSA & SA - altered PBP A - acetylation, adenylation, phosphorylation V - terminal D-ala replaced with D-lac, decreased affinity C - acetylation M - methylation of mRNA near erythromycin's ribosome binding site |
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Antibiotic Resistance for...
Tetracycline? Sulfonamides? Quinolones? |
T - decreased uptake or increased transport out of cell
S - alterated enzyme (bacertial dihydropteroate synthetase), decreased uptake or increased PABA synthesis Q - altered gyrase or reduced uptake |
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Amphotericin B?
- Mechanism? - Clinical Use? Effect on brain? - Toxicity? Decrease effects how? |
M - binds ergosterol, forming membrane holes that allow electrolyte leakage (ampohTERICIN TEARS holes in fungal membranes)
U - wide spectrum fungi - Cryptococcus, Blastomyces, Coccidioides, Aspergillus, Histoplasma, Candida, Mucor, fungal meningitis (DOES NOT CROSS BBB) T - fever, chills ("shake & bake"), hypotension, nephrotoxicity (decrease with hydration), arrythmia, anemia, IV phlebitis ("amphoterrible"), DECREASED TOXICITY WITH LIPOSOMAL AMPHOTERICIN |
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Nystatin?
- Mechanism? - Clinical Use? |
M - binds ergosterol disrupting fungal membrane, TOO TOXIC FOR SYSTEMIC USE
C - "Swish & Swallow" for oral candidiasis, topical for diaper rash or vaginal candidias |
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-Azoles?
- Mechanism? - Clinical Use? Fluconazole, Ketoconazole, Clotrimazole & Miconazole? - Toxicity? |
Fluconazole, Ketoconazole, Clotrimazole, Miconazole, Itraconazole, Voriconazole
M - inhibits fungal sterol synthesis C - systemic mycoses, Fluconazole for cryptococcal meningitis (AIDS - crosses BBB) and candidal infections, Ketoconazole for Blastomyces, Coccidioides, Histoplasma, Candida albicans, hypercortisolism, Clotrimazole & Miconazole for topical fungal infections T - hormone synthesis inhibition (gynecomastia), liver dysfunction (inhibits p450), fever, chills |
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Flucytosine?
- Mechanism? - Clinical Use? With what? - Toxicity? |
M - inhibits DNA synthesis by conversion to 5-florouracil
C - systemic fungal infections (used with Amphotericin B) T - nausea, vomitting, diarrhea, bone marrow suppression |
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Capsofungin?
- Mechnanism? - Clinical Use? - Toxicity? |
M - inhibits cell wall synthesis by inhibiting synthesis of B-glucan
C - invasive aspergillosis T - GI upset, flushing |
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Terbinafine?
- Mechanism? - Clinical Use? |
M - inhibits the fungal enzyme squalene epoxidase
C - used to treat dermatophytes (esp onchomycosis) |
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Griseofulvin?
- Mechanism? - Clinical Use? - Toxicity? |
M - interferes with microtubule function, disrupts mitosis, deposits in keratin-containing tissues
C - oral treatment of superficial infectins, inhibits growth of dermatophytes T - tetrogenic, carcinogenic, confusion, headaches, increases p450 and warfarin metabolism |
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Amatadine?
- Mechanism? - Clinical Use? - Toxicity? - Mechanism of Resistance? - Derivative? |
M - blocks viral penetration/uncoating (M2 protein), may buffer pH of endosome & increases dopamine release from nerve terminals
" A man to dine" takes off his coat C - prophylaxis and treatment for Influenza A, Parkinson's disease "Amantadine blocks influenze A and rubellA and causes problems with carebellA" T - ataxia, dizziness, slurred speech R - mutated M2 protein (90% of influenza A so often not useful) D - Rimantidine is a derivative with CNS side effects (doesn't cross BBB) |
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Zanamivir, Oseltamivir?
- Mechanism? - Clinical Use? |
M - inhibit influenza neuraminidase, decreases release of progency virus
C - both influenza A & B |
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Ribavirin?
- Mechanism? - Clinical Use? - Toxicity? |
M - inhibits synthesis of guanine nucleotides by competitively inhibiting IMP dehydrogenase
C - RSV, Chronic HCV T - Hemolytic anemia, severe teratogen |
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Acyclovir?
- Famciclovir? - Mechanism? - Clinical Use? Not effective for what? - Toxicity? - Mechanism of Resistance? |
M - monophosphorylated by HSV/VZV thymidine kinase, inhibits viral DNA polymerase by chain termination, Guanosine analogue,
Triphosphate formed by cellular enzymes Famciclovir - for Herpes Zoster C - HSV (mucocutaneous & genital lesions, encephalitis), VZV, EBV, Prophylaxis in immunocompromised, NO EFFECT ON LATENT HSV & VZV! T - well tolerated R - lack of thymidine kinase |
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Ganciclovir?
- Mechanism? - Clinical Use? - Toxicity? More that what? |
M - 5' monophosphate formed by CMV viral kinase or HSV/VZV thymidine kinase, Guanosine analog, Triphosphate formed by cellular enzymes, Preferably inhibits viral DNA polymerase
C - CMV, esp in immunocompromised T - leukopenia, neutropenia, thrombocytopenia, renal toxicity (more toxic than acyclovir) R - mutated CMV DNA polymerase of lack of viral kinase |
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Foscarnet?
- Mechanism? Doesn't require what? - Clinical Use? - Toxicity? - Mechanism of Resistance? |
M - Viral DNA polymerase inhibitor that binds to the pyrophosphate-binding site of the enzyme, does NOT require activation by viral kinase
* FOScarnet - pyroFOSphate analog C - CMV retinitis in immunocompromised patients when ganciclovir fails, acyclovir-resistant HSV T - nephrotoxicity R - mutated DNA polymerase |
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HIV Therapy? Protease inhibitors?
- Mechanism? - Toxicity? |
Saquinavir, Ritonavir, Indinavir, Nelfinavir, Amprenavir (ALL protease inhibits end in -navir)
NAVIR (never) TEASE a proTEASE M - inhibits maturation of new virus by blocking protease in progeny virions T - GI intolerance (nausea, diarrhea), hyperglycemia, lipodystrophy, thrombocytopenia (indinavir) |
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HIV Therapy? Reverse Transcriptase Inhibitors?
- Nucleosides vs Non-Nucleosides? - Mechanism? - Clinical Use? ZDV specifically? - Toxicity? |
Nucleosides - Zidovudine (ZDV, formerly AZT), Didanosine (ddI), Zalcitabine (ddC), Stavudine (d4T), Lamivudine (3TC), Abacavir
"Have you dined (vudine) with my nuclear (nucleosides) family?" Non-Nucleosides - Nevirapine, Efavirenz, Delavirdine (Never Ever Deliver nucleosides) M - preferentially inhibits reverse transcriptase of HIV, prevent incorporation of DNA copy of viral genome into host DNA C - highly active antiretroviral therapy (HAART) with protease inhibitors & reverse transcriptase inhibitors - give when patients have low CD4 counts (<500) or high viral load * ZDV is used for general prophylaxis and during pregnancy to reduce risk of fetal transmission T - bone marrow suppression (neutropenia, anemia - decrease with GM-CSF and erythropoietin), peripheral neuropathy, lactic acidosis (nucleosides), rash (non-nucleosides), megaloblastic anemia (ZDV) |
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HIV Therapy? Fusion Inhibitor?
- Mechanism? - Clinical Use? - Toxicity? Increased risk of what? |
Enfuvirtide?
M - binds viral gp41 subunit; inhibits conformational change required for fusion with CD4 cells, therefore block entry and subsequent replication C - in patients with persistent viral replication in spite of anti-retroviral therapy T - hypersensitivity rxn, rxn at subcutaneous injection site, increased risk of bacterial pneumonia |
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Interferons?
- Mechanism? - Clinical Use? Alpha? Beta? Gamma? - Toxicity? |
M - glycoprotein from human leukocytes that block various stages of viral RNA and DNA synthesis
C - IFN-alpha for chronic HBV, HCV, Kaposi's sarcoma, IFN-beta for MS, IFN-gama for NADPH Oxidase Deficiency T - neutropenia |
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Antibiotics to avoid in pregnancy?
What do they cause? |
Sulfanomides - kernicterus
Amingoglycosides - ototoxicity Floroquinolones - cartilage damage Erythromycin - acute cholestatic hepatitis in mom (Clarithromycin - embryotoxic) Metronidazole - mutagenesis Tetracycline - discolored teeth, inhibition of bone growth Ribavirin - teratogenic Griseofulvin - teratogenic Chloramphenicol - gray baby "SAFE Moms Take Really Good Care" |