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Pharm 3

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Answer
-Generalized tonic-clonic seizures and partial seizures. -low toxicity and low cost -metabolized by the hepatic microsomal system, MOA: (sedation) GABAA receptors. (Anticonvulsant): Ca++ channel inhibition /decreases excitatory transmitter release.   Phenobarbital  
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- Generalized Tonic-clonic and partial seizures. -efficacy is due both to drug and active metabolites (Phenobarbital). -two active metabolites, phenobarbital and phenylethylmalonamide (PEMA)   Primidone (Mysoline)  
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- Generalized tonic-clonic, simple, and complex-partial seizures. - trigeminal (tic douloureux) , glossopharyngeal neuralgias and manic-depressive affective disorder( resistant to lithium) pain associated with multiple sclerosis -Hepatic metabolism   Carbamazepine (Tegretol)  
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-epilepsy, mood disorders, anxiety -analog of carbamazepine - active metabolite (10-hydroxycarbazepine) that is equipotent to carbamazepine - fewer SE’s that carbamazepine - hyponatremia -anticholinergic activity - synergistically with nmb   Oxcarbazepine (Trileptal)  
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-central agent in treating absence seizures. - More effective in managing absence seizures than trimethadione SE : euphoria, anemia Bone marrow depression, Stevens-Johnson syndrome -Tegretol decreases levels. - Isoniazid increases levels.   Ethosuximide (Zarontin)  
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-alone or in combination to treat partial and generalized seizures, bipolar disorder and depression - sodium channel antagonist and high voltage dependent Ca++ channels -decrease the release of aspartate and glutamate -met. by liver -hep enzyme induc   Lamotrigine (Lamictal)  
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-used to treat partial sz in adults and neuropathic pain -mono- or adjunctive therapy -bind to synaptic vesicles decreasing release of NT -SE h/a, anxiety, CNS depression ,initial sedation, depression , hallucinations -no liver met or protein binding   Levetiracetam (Keppra)  
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DOC for status epilepticus also used for status epilepticus, other sz - interaction with GABAA ionophore to increase the duration of GABA binding and -increase chloride flux leading to hyperpolarization - low toxicity - used as anesthesia adjuvant   Benzodiazepines Diazepam (Valium) Lorazepam (Ativan)  
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-May also be used in combination with other drugs to tx: akinetic sz, absence sz refractory to succinimides or valproic acid (Depakene), infantile spasms -MOA: benzo-mediated enhancement of GABA-induced ^ in Cl- conductance (hyperpolarization).   Clonazepam (Klonopin)  
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- Partial and tonic-clonic sz but NOT absence sz - widely used - Hep microsomal system. SE: status epilepticus the most apparent toxic sign is cardiac arrhythmia cerebellar and vestibular disturbances, hirsuitism -Etoh decreases efficacy.   Phenytoin (Dilantin)  
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-a Phenytoin prodrug used by injection for status epilepticus (5 day max use, only if Phenytoin not usable) -more water soluble and metabolized to formic acid   Fosphenytoin (Generic)  
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- Partial, generalized seizures and absence seizures -extensively protein bound and conjugated - MOA d/t ^^ recovery time of voltage activated Na+ channels. -Can cause serum phenobarbital to increase by 40%.   Valproic Acid (Depakene)  
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-adjunct for partial and generalized seizures, obesity, migraines and Parkinson’s disease -acts at GABAA receptor to enhance GABA binding - blocks voltage-gated T-type calcium channels -metabolism can be inhibited by ketoconazole, carbamazepine(Tegreto   Zonisamide (Zonegran)  
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-adjunct for partial sz, anxiety disorders (panic attacks), and neuropathic pain - inhibits GABA neuronal reuptake -^^ duration of GABA interaction at receptor zone - ^^ neuronal inhibition -use may actually trigger sz in non-epileptics   Tiagabine (Gabitril)  
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-tx partial, generalized, absence sz, bulimia, migraine h/a, tremors -structurally a monosaccharide r/t fructose - inhibit voltage gated Na and Ca channels - enhances GABA Cl ion flux -inhibits glutamate induced neuronal excitation - SE kidney ston   Topamax  
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-no longer the clinical agent of choice for absence seizure due to toxicity. MOA: Similar to ethosuximide (Zarontin) -inhibits T-type Ca++ currents. -metabolite Dimethadione.   Trimethadione (Tridione)  
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-Structural analog of GABA -chronic pain therapy -MOA: increase GABA synthesis, -increase interaction with GABA receptors -decrease GABA reuptake rate -1/2 life 6 hours No plasma protein binding   Gabapentin (Neurontin)  
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• Cross links DNA (cant divide). • DLT is bone marrow dep • Uses: Hodgkin’s lymphomas, leukemias, lung breas, ovarian ca, burkitt’s lymphoma • agent for kids w/ neuroplastomas/ Retinoblastomas • used in combo w/ methorexate + 5-fluorouracil for breast   Alkylating Agent: Cyclosphoshamide (cytoxan)  
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• MOA: DNA crosslink • Uses: CML and polycythemi vera • DLT; Bone marrow dep. • SE: alopecia, lung fibrosis, impotence • causes myelosupression (granulocytes > plts, erythrocytes >pancytopenia • no cytotoxicity to lymphoid tissue or GI epilthelium   Alkylating agent: Busulfan (myleran)  
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• Inhibit topisomerase II • Bind to DNA to inhibit DNA/RNA synthesis • O2 radical production • DLT for doxorubin and saunorubicin is CM (d/t O2 radicals) • Bone marrow dep in 2 weeks, recovery in 4 weeks. More severe w/ dexrazoxane   Antibiotic anticancer agents: Anthracyclines Doxorubicin, Daunorubicin, and others)  
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• Uses: soft tissue osteogenic an other sarcomas; lungs, bladder, ovarian, thyroid cancers; Hodgkin, lymphoma, acute leukemia • If given to rapidly IV, erythematous streaking along proximal veins • Chelates iron and other metals   Doxorubicin (adriamycin)  
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• uses: acute leukemias, some solid tumors in children. • Daunoxome approven 1st line therapy for advance Karposi sarcoma   Daunorubicin (Daunomycin)  
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Cu-chelating glycopeptides, isolated from streptomyces • MOA: breaks DNA strands >Free radicals • DLT: Pulmonary fibrosis • Uses: testicular tumors, skin cancers, lung, Kaposi’s sarc. lymphoma, Hodgkins • SE: N/V fever, skin toxicity, anaphylactic rx   *Bleomycin Antibiotic anti cancer agent  
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anaolog of folic acid. • Uses ALL in kids, carc. of breast, head, neck, gastric, bladders. used in high doses for osteogenic sarcomas along w/ "rescue” of host toxicity by leucovorin (folinic acid, citrovorum fx). • DLT is mucositis. • TERATOGENIC   Anti metabolic anti cancer agent: *Methotrexate;  
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Analog of uraciil w/ flourine @ 5-position • cells can be “rescue from high doses by giving uridine • Methotrexate ^^ activity • Use stomach, colon, bladder, prostate, breast, and ovarian ca, • Warning of ^ dose= anorexia, nausea, > stomatitis & diar   *5-Fluorouracil  
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• Isolated from the periwinkle plant. • MOA; spindle poisons, causes mitotic arrest at metaphase. • May need allopurinol to prevent hyperuricemia • Fatal if given intrathecally   Natural product anticancer Agents: *Vincristine (oncovin)t1/2=85hr Vinblastine (Velban)t1/2=25hr  
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from the Pacific and European Yew Tree (Bark fungus) • MOA mitotic spindle poison. • Uses; breast head, lung ca, Kaposi sarcoma & restinosis (taxus). • Docetaxel & Carbazitaxel for prostate ca • SE: N/V alopecia, neutropenia, anemia, thrombocytopenia   Natural product anticancer Agents: Paclitaxel, Docetaxel (Taxotere), CArbazitaxel (Jevtana)  
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MOA: after hydrolysis, loses Cl & forms platinum species that reacts w/ DNA & protein to from cross link. Use testicular tumors, ca. of bladder, neck, cervical, lung, esophagus, neuro & retinoblastomas SE: n/V, ototox neurotox, anaphylaxis DLT-nephrot   Natural product anticancer Agents: Cisplatin (Platinol)  
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• Less nephrotoxic than cisplatin • 2nd generation compound • Uses: ovarian, head, neck and lung ca • DLT: bone marrow depression • Longer half life than cisplatin   Carboplatin.  
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• Ethyl or Isopropyl • Iso more effective than Ethyl • Antiseptic and disinfectant • Bactericidal • Repeated wiping increases efficacy • Ineffective against fungal or viral organisms   . Alcohol  
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• Benzalkonium and Cetylpyridinium • Effective against most bacteria, fungal and viruses. NOT mycobacterium tuberculosis • Mixed with alcohol to increase efficacy • Alters cell permeability • Also used as preservatives and to sterilize surgical equip.   Quatenery ammonia compounds  
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Effective against bacterial, viral, and fungus • Toxicity fairly low, but caution in allergic pts. • Use as a skin antiseptic, but must be applied for 1-2 mins to assure good action • Causes skin staining, beneficial notification of application   . Iodine  
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• Combination of an organic molecule carrier with iodine • Povidine-iodine most common agent • Free iodine concentration is low enough that little staining is observed • Not as effective as iodine • Used in handsoaps and surgical swabs   Iodophors  
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• No longer used d/t easy absorption and severe dermatological, neurological, and possible teratogenic effects • Neonates especially susceptible • Handwash effective against gram+ bugs • Sticks to skin providing continued action • Presscript only for   Hexachlorophene (pHisoHex)  
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• Used as a caustic astringent and antiseptic • Bactericidal, and often used in eyes of newborns of mothers with gonococcal infections • Used on burns and other wounds   Silver Nitrate  
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• Mercurochrome & Merthiolate (Thiomersal) • Not used much now. Thiomersal used as preservative in a few vaccines • Poor efficacy • Allergic reactions and poisoning (oral)   Mercurous compounds  
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1. Alcohol 2. Quatenery ammonia compounds 3. Iodine 4. Iodophors 5. Chlorahexidine (Hibiclens) 6. Hexachlorophene 7. Silver Nitrate 8. Mercurous compounds   Antiseptic  
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• Effective against bacterial, viral, and fungal organisms • Glutaraldehyde more effective than formaldehyde • Requires several hours exposure for maximum effectiveness • Acts by precipitating proteins in the organism • Reacts with any proteins,   Aldehydes  
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• Bactericidal against most organisms including Mycobacterium tuberculosis • A phenol derivative, it causes burns to skin, therefore is only used as a disinfective   Cresol  
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• Used in Gas sterilization • Requires a treatment chamber to hold instruments for the several hour contact period required • Air-out plastic components sterilized by this method to allow ethylene oxide to out-gas from materila   Ethylene Oxide  
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Alcohol Aldehydes Cresol Chlorine Ethylene oxide Heat   Disinfectants  
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Bind to 30S subunit of bacterial ribosome & inhibit PRO synthesis by blocking the binding of aminoacyl tRNA to acceptor site (A) on the mRNA-ribosome complexà AA can’t be added to the growing peptide   Tetracyclines  
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Irreversible inhibitors of PRO synthesis that bind to receptor PRO on 30S subunit à misreading of mRNA message -Gentamicin, Tobramycin, Amikacin, Streptomycin, Neomycin (Combined with polymixin as Neosporin), Kanamycin   Aminoglycosides  
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Inhibits PRO synthesis & binds to the 30S subunit (doesn’t à misreading like AG’s do)   Spectinomycin (Trobicin)  
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PRO synthesis inhibitor that reversibly binds to site on 50S subunit & inhibits translocation step where peptidyl tRNA moves from A site on the ribosome to P site & reversibly blocks PRO synthesis.   Macrolides - erythromycin (E-mycin), clarithromycin (Biaxin), azithromycin Zithromax)  
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binds reversibly to 50S subunit of bacterial ribosomes & inhibits PRO synthesis (like macrolides) -lincomycin (Lincocin),clindamycin (Cleocin)   Lincosamides: -lincomycin (Lincocin),clindamycin (Cleocin)  
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PRO synthesis inhibitor by reversibly binding to 50S subunit of bacterial ribosomes & inhibits transpeptidation by inhibiting peptidyl transferase. It prevents binding of AA end of aminoacyl tRNA to the acceptor site on 50S subunit.   Chloramphenicol  
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Inhibits PRO synthesis by binding to bacterial 23S ribosomal RNA of the 50S subunit thus px formation of a functional 70S initiation complex, an essential step (unique MOA & doesn’t show cross resistance to other antibx)   Oxazolidione (Linezolid)  
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Bind to 23S RNA of the 50S subunit (like macrolides); do not induce the methylase enzyme (so not subject to MLS resistance?)   Streptogramins  
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Same as other B-lactam antibx: Disrupts synthesis of peptidoglycan layer of bacterial cell wall. Inhibits final stage of cell wall synthesis that involves peptide crosslinking by transpeptidases; structural analog of d-ala d-ala   Penicillins  
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Parenterals: methicillin and Nafcillin, Oral: Isoxazolyls   Penicillinase-Resistant Penicillins  
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Carboxypenicillins (ticarcillin disodium(Timentin – with clavulanic acid) , Ureidopenicillins (piperacillin)   Antipseudomonal  
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Same as other B-lactam antibx: Disrupts synthesis of peptidoglycan layer of bacterial cell wall. Includes 1st, 2nd, 3rd, and 4th generations   Cephalosporins  
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Oral:Cephalexin (Keflex),Cefadroxil Parenteral: Cefazolin (Ancef, Kefzol)   1st gen. Cephalosporins  
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Oral:Cefaclor (Ceclor, Raniclor),Cefuroxime axetil (Ceftin),Cefprozil Parenteral:Cefoxitin (Mefoxin) Cefuroxime sodium (Zinacef) Cefotetan (contains N-methylthiotetrazole group)   2nd gen. Cephalosporins  
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Oral: Cefixime (Suprax) Cefpodoxime proxetil Ceftibuten (Cedax) Parenteral: Cefotaxime (Claforan) Ceftriaxone (Rocephin) Ceftazidime (Fortaz)   3rd gen. Cephalosporins  
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Cefepime (Maxipime)   4th. Gen. Cephalosporins  
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Inhibition of cell wall synthesis -Imipenem (available with cilastatin as Primaxin), Meropenem (Merrem), Doripenem (Doribax), Ertapenem (Invanz)   Carbapenems  
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Same as other B-lactam antibx: Disrupts synthesis of peptidoglycan layer of bacterial cell wall. Begins with Mono.   Monobactam  
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Inhibits cell wall synthesis (peptidoglycan synthesis) by irreversibly binding to the pair of d-ala molecules of cell wall precursor units   Vancomycin  
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Inhbits cell wall synthesis by binding to a precursor of cell wall& forming unusable complex; acts 1 step before the one inhibited by vancomycin   Bacitracin  
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Inhibits early stage of cell wall synthesis; inhibits enolpyruvyl transferase & irreversibly blocks condensation of UDP-N-actely glucosamine w/p-enolpyruvate; inhibits bacterial adherence to uroepithelial cells   Fosfomycin Tromethamine (Monurol)  
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PABA analog that competitively inhibits DHPS which is required for folic acid synthesis; it only affects bacteria that synthesize own folic acid   Sulfonamides (Sulfamethoxazole, Sulfisoxazole, Sulfadiazine,Sulfacetamide, Sulfamylon, Silvadene Trimethoprim-Sulfamethoxazole (Bactrim, Septra)  
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Nitro group activated by intracellular electron transport PRO in anaerobic organism to chemically reactivate intermediates that react with DNA & can> ↑ degradation of existing DNA, altered DNA helical structure, ↑ strand breaks, & inhibition of DNA syn.   Metronidazole (Flagyl)  
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anoxic or hypoxic condition is required for formation of cytotoxic metabolites)   Metronidazole (Flagyl)  
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Surface active agents that disrupt osmotic properties and transport mechanisms of cell membranes in gram – bacteria only; also binds & inactivates endotoxins   Polymixins  
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Reversibly binds to bacterial isoleucyl-tRNA synthase & blocks PRO synthesis   Mupirocin (Bactroban)  
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Inhibits DNA gyrase which is a topoisomerase responsible for breaking & rejoining DNA strands necessary for DNA replication -ciprofloxacin ophthalmic (CILOXAN), ofloxacin , etc   Fluoroquinolones ciprofloxacin (CIPRO) ophthalmic (CILOXAN), ofloxacin ophthalmic (OCUFLOX), norfloxacin (NOROXIN),lomefloxacin, Levofloxacin (LEVAQUIN), Gatifloxacin (Zymar - ophthalmic), Moxifloxacin (Avelox)  
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Similar to the Macrolides, keto group a 3 position instead of a hydroxyl group and removal of a sugar group, binds to the 50s bacterial ribosomal subunit -Telithromycin (Ketek) (oral tablets)   Ketolides  
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Hydrolyzed in acidic urine to formaldehyde and ammonia, Formaldehyde is bactericidal in urine ph < 5.5, Used for chronic lower UTIs. Activity is higher in acid urine, Primarily used to px UTIs and to px bacteriuria after prostatectomy, urinary analgesic   Urinary tract Antiseptics: Methenamine (Hiprex), Nitrofurantoin (Furadantin), Hemolytic anemia (if G6PD-deficient)  
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Not DOC for anything (alone)   Sulfa  
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DOC for prevention of burn infections   Silver Sulfadiazine  
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DOC for empiric treatment of acute UTI, Nocardia, moraxella catarrhalis, H. flu, Yersinia enterocolitica   Trimethoprim + sulfamethoxazole (Bactrim, Septra) 5:1 SMZ:TMPà [blood] ratio of 20:1  
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Listeria monocytogenes   Ampicillin  
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Proteus mirabilis, Eikenella corrodens   AminoPCN (ampicillin, amoxicillin)  
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1 of DOC for pseudomonas aeruginosa   Ticarcillin + aminoglycoside  
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DOC for syphilis   PCN  
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Antbx for Rheumatic recurrence   Use Pen V or benzathine Pen G  
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DOC Endocarditis prevention if valvular disease undergoing dental/surgical procedures   PO DOC= amoxicillin 1 hour before procedure Parenteral DOC= ampicillin 30 min before procedure  
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Typhoid fever DOC   ceftriaxone  
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Gonorrhea DOC   Ceftriaxone or cefixime  
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DOC for enterobacteriaceae (E. coli, Klebsiella, Proteus, Providencia stuartii, Serratia   3rd gen. Cephalosporins  
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Drug used for H. flu meningitis   Ceftriaxone or cefotaxime  
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Drugs used for Surgical Prophylaxis   Cefazolin- ‘clean’ surgery Cefoxitin or cefotetan- colorectal surgery, appendectomy, hysterectomy, or ‘dirty’ surgery  
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DOC for Enterobacter, Citrobacter freundi, Acinetobacter, C. fetus   Imipenem  
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Reserved for very serious gram- infections resistant to less expensive drugs   Azactam  
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DOC for mycoplasma pneumo (or a TCN), legionella pneumophila (+ rifampin), bordetella pertussis, corynebacterium diptheriae, campylobacter jejuni (if fluoroquino are c/i) DOC valvular heart disease undergoing dental/surgical procedures & allergic to PCN   Macrolides  
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DOC for helicobacter pylori (TCN+ flagyl+ bismuth subsalicylate). Also useful for rickettsial, mycoplasmal, spirochetal, chlamydial.   tetracyclines  
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DOC for UTI due to pseudomonas aeruginosa   ciprofloxacin (fluoroquinolone)  
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DOC for campylobacter jejuni, shigella, salmonella,   Fluoroquinolones  
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DOC for rickettsial disease (Rocky Mountain spotted fever) if unable to take TCN (↓ renal fxn, pregnant, peds), glanders (w/streptomycin), N. Meningitis & H. influenzae meningitis if PCN allergic   Chloramphenicol  
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DOC w/TCN for glanders (pseudomonas mallei)   Streptomycin  
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Used to tx vancomycin resistant enterococcus faecium, community acquired pneumonia d/t staph aureus, streptococcus penumoniae, & skin infections (even those d/t MRSA)   Zyvox  
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DOC for MRSA   Vancomycin  
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DOC for giardiasis (anaerobic protozoa); DOC for C. difficile & H. pylori (PO form only); DOC for gardnerella vaginalis   Flagyl  
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Bacteriocidal antibiotics   PCN, cephalosporins, carbapenems, fluoroquinolones, flagyl, monobactam, aminoglycosides, fosfomycin  
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Bacteriostatic   sulfamides, macrolides, lincosamides, tetracyclines, chloramphenicol, Zyvox, Vancomycin, spectinomycin  
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SE: -metallic taste & neurotoxicity (neuropathies, dizziness, convulsions, vertigo)à c/I in active CNS disease -disulfram like rxn with ETOH -Reddish brown urine, reversible neutropenia -may potentiate warfarin; may potentiate lithium toxicity   Flagyl  
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SE: -rapid infusion à ‘red neck’ syndrome = flushing over upper chest, urticarial rash, tachycardia, hypotension d/t histamine release -ototoxicity & nephrotoxicity- especially if renal impairment   Vancomycin  
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-it’s a weak MAOI (avoid tyramine rich foodsà HTN crisis)   Zyvox  
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-all s/e are dose-dependent except hypersensitivity (which is rare) -ototoxicity (its irreversible b/c sensory hair cells do not regenerate) ​*auditory toxicity: can lead to deafness ​*vestibular toxicity: h/a, n/v, vertigo, ataxia   aminoglycosides  
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SE: -nephrotoxicity: ↑BUN & Crt; its reversible since proximal tubular cells can regenerate ​Drug: dose or duration (streptomycin least nephrotoxic, gentamicin most nephrotoxic) ​Patient: age extremes, & critically ill pts   Aminoglycosides  
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-Neuromuscular blockade: inhibits presynaptic Ach release @ NMJ & ↓ postsynaptic receptor sensitivity; characterized as respiratory depression; patients with myasthenia gravis or hypocalcemia > susceptible; potentiation w/NMBD   Aminoglycosides  
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SE: -Most adverse effects d/t inhibitory effect on PRO synthesis in mitochondria -Bone marrow disturbances ​*toxic erythroid bone marrow depression- (dose related) usually have complete recovery after d/c’d   Chloramphenicol  
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SE: ​aplastic anemia- (not dose related) irreversible & fatal -Gray Baby Syn.- 40% fatality; turns skin ash gray - use w/caution in babies & limit dose -irreversible inhibition of liver microsomal P450 enzymes > ↑t1/2 warafin, phenytoin, etc.   Chloramphenicol ​  
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-rare & infrequent s/e -cartilage deterioration (arthropathy) in young animals so c/I in kids < 18y/o or during pregnancy or nursing -Ofloxacin (Floxin) may potentiate anticoagulant activity of warfarin   fluoroquinolones  
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-GI effects (take with food and a full glass of H2O) -superinfections much more common d/t broad spectrum -Hepatotoxicity (especially if pregnant- so c/I during pregnancy) -Renal toxicity (r/t TCN used, dose, duration, & extent of renal damage before u   tetracyclines  
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-binds to Ca2+ deposits in new forming bone & teeth à permanent brown discoloration of teeth in kids <8y/o & depression of bone growth (so c/i in pregnancy and peds) -Vestibular toxicity with minocycline (abates after d/c’d)   tetracyclines  
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-Benign intracranial HTN in adults (pseudotumore cerebri) manifested as H/A, blurred vision, bulging fontanels -Can ↓ prothrombin activity (so may need to decrease dose of anticoagulants) -↓ effectiveness of oral contraceptives   tetraclyclines  
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-High incidence of diarrhea & pseudomembranous colitis not r/t dose or route (caused by necrotizing endotoxin)   lincosamides  
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-Inhibits cytochrome P450 enzymes>↑ effects of drugs such as anticoagulants, carbamazepine, cyclosporine, ergotamine, triazolam, lovastatin, theophylline -Cholestatic jaundice in adults may be d/t hypersensitivity to estolate ester (dont use if pregnant   macrolides  
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-high doses> transient reversible hearing impairment -rare reports of ventricular arrhythmias in patients w/ prolonged QT interval   macrolides  
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T or F. The Monobactam, Azactam is ok to use if PCN allergic; can >gram+ superinfections   True  
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T or F. -If PCN allergic, consider also allergic to imipenem Can cause seizures: especially if elderly, predisposed to seizures, or high doses with renal impairment (meropenem least likely)   True  
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-Cefotetan & Cefoperazone: contain N-methylthiotetrazole group that can be cleaved & inhibit Vit K metabolism & aldehyde dehydrogenase > hypoprothrombinemia, bleeding disorders, & disulfiram-like rxn   Cephalosporins  
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-Pseudomembranous colitis & superinfections (especially with 3rd generation); candidiasis is common   Cephalosporins  
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-CarboxyPCN: high Na+ content > CHF -Carbenicillin: abnormal platelet aggregation & bleeding -Intrathecal PCN: epileptogenic (never give IT)   PCN  
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-Toxic concentrations of all PCN possible if patient renally impaired > seizures -Ampicillin rash: not a hypersensitivity rxn -Jarisch-Herxheimer rxn: if used in patients with secondary syphilis   PCN  
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-may be antagonized by LA with are esters of PABA (procaine) -toxic epidermal necrolysis & Stevens-Johnson syndrome if hypersensitivity rxn occurs   Sulfa  
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SE: -hepatic necrosis -blood dyscrasias (agranulocytosis, aplastic anemia, hemolytic anemia) -Mafenide: metabolic acidosis d/t inhibition of carbonic anhydrase -Bactrim or Septra: CNS toxicity in AIDS patients   sulfa  
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