Chermotherapy....Antibiotics
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show | Penicillins
Cephalosporins
Carbaenems
Vancomycin, Telavancin, Aztreonam
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PENICILLINS | show 🗑
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Bactericidal | show 🗑
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Bacteriostatis | show 🗑
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show | narrow spectrum
given parentally
tx gram-positive cocci
4-salts: potassium PCN-G, Procaine PCN-G, Benzathine PCN-G, Sodium PCN-G
not absorbed well
eliminated in kidney
AE: allergy
Drug int:aminoglycosides, probenecid
PCN V or VK = good oral absorp
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Penicillinase-Resistant PCNs | show 🗑
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Broad Spectrum PCNs (Aminopenicillins) | show 🗑
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show | TICARCILLIN, PIPERACILLIN
used for P. aeruginosa
frequently combined with aminoglycoside to inc. killing of pseudomonal organism, DON'T mix in same solution
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Cephalosporins-Beta Lactam antibx | show 🗑
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show | CEFADROXIL, CEPHALEXIN, CEFAZOLIN
mostly gram + organisms, some gram-
destroyed by beta-lactamases
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Second Generation Cephalosporins | show 🗑
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Third Generation Cephalosporins | show 🗑
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show | 3rd generation, liver metabolism (not kidney), causes bleeding
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show | CEFEPIME
CSF penetration
highest restistance to beta lactamase
highest activity against gram - bacteria and anaerobes
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show | CEFAROLINE (new)
effective against MRSA
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Carbapenems | show 🗑
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show | IMIPENEM-given with cilstatin
MEROPENEM
ETRAPENEM
DORIPENEM-new for uncomplicated UTI, tx psedomonas
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VANCOMYCIN | show 🗑
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show | cell wall synthesis inhibitor
beta lactam antibx
narrow spectrum....only gram -
IV/IM
well tolerated
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show | lipoglycoprotein
binds to bacterial cell membran and disrupts fxn, inhibits cell wall synthesis
gram + bacteria only
IV, renal excretion
AE: Redman syndrome, prolong QT interval, avoid during preg
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FOSFOMYCIN | show 🗑
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Bateriostatic Inhibitors of Protein Synthesis: TETRACYCLINES | show 🗑
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show | short-acting, eliminated by the kidney
food decreases oral absorption, low lipid solubility
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show | Intermediate-acting, eliminated by the kidney
food decreases abosorption, moderate lipid solubility
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show | Long-acting, eliminated by the liver
food decreases oral absorption
MINOCYCLINE-food does not decrease oral absorption
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show | infections, acne, peptic ulcer disease (h. pylori), peridontal disease, prophylaxis for malaria
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show | absorption: milk products, iron supplements, magnesium containing laxatives, and antiacids.....take 2hrs apart
AVOID in renal failure
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show | N/V/D, discoloration to teeth, AVOID in preg., breast feeding, and children under 8 yrs,
suprainfection-overgrowth of drug resistent organisms especially C. Diff, can lead to CDAD, causing severe diarrhea,
hepatoxicity, renal toxicity, photosensitivity
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show | profuse watery diarrhea, abd pain, fever, leukocytosis
can be fatal
tx: vancomycin or metronidazole, fluid, electrolyte replacement
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Macrolides | show 🗑
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show | can be used if allergic to PCN
used for strep resp infections, drug of choice for Legionnaires disease, whooping cough, diptheria
effective for chlamydia and pneumonia
AE: GI, supra infection, cardiotoxicity,
drug int: can inhibit hepatic metabolism
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Macrolides: CLARITHROYCIN | show 🗑
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show | used for resp tract infections, chancroid, OM, mycobacterium avium complex, C. trachoatis
AE: minimal GI and drug int.
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show | broad spectrum
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Protein Synthesis Inhibitors (oxazolidinones): LINEZOILID | show 🗑
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Protein Synthesis Inhibitors (ketolides): TELETHROMYCIN | show 🗑
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show | new class, separately they are bacteriostatic, together = bactericial, safe if allergic to PCN
uses: VRE, MRSA, drug resistant Strep pneum
AE: hepatoxicity, inhibit liver drug metabolizing enzyme
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show | broad spectrum
tx: samonell, H flu, niesseria, strep pneum, B. frag, rickettsiae, clamydiae
bacteriostatic but can be cidal in high concentration
uses: life threatening infections
AE: reversible bone marrow depression, fatal aplastic anemia, gray synd
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show | can cause serious injury to inner ear and kidney
narrow spectrum: gram - only
given parentally, does not cross BBB
excreted in kidney
AE: nephrotoxicity, ototoxicity, hypersensitiviy, neuromus blockade
given w/PCN to cover gram + and -
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Aminoglycosides MOA | show 🗑
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Aminoglycoside Agents | show 🗑
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show | aminoglycoside
used for serious infections cause by aerobic gram - bacilli (pseudomonas aeruginosa, E. Coli, klebsiella, Serratia, Proteus Mirabilis)
excreted in kidney
AE: nephrotoxicity, otoxicity
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TOBRAMYCIN | show 🗑
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AMIKACIN | show 🗑
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show | broad spectrum antibx
analog of PABA
suppress bacterial growth by inhibiting folic acid synthesis
uses: UTI
AE: hypersensitivity (steven-johnson's syn, photosensitivity), hematolytic anemai with G6PD deficiency, Kernicterus (disposition of bilirubin i
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Short-Acting Sulfonamide | show 🗑
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Intermediate-Acting Sulfonamide | show 🗑
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show | SULFACETAMIDE-eye infections
SILVER SULFADIAZINE- infections after burns
MAFENIDE-infections after burns
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TRIMETHOPRIM | show 🗑
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show | fixed dose combo, broad spectrum
uses: UTI, pneumonia, GI infections, OM, shigellosis, bronchitis
AE: GI, rash, hypersensitivity, crystalluria, blood dyscraias, CNS effects, AVOID in preg and lactation
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Fluoroquinolones "floxacin" | show 🗑
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CIPROFLOXACIN | show 🗑
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show | GI, HA, dizziness, candida of pharynx and vagina, tendon injury, c. diff infection, photosensitivity
Int: absorption decreased by: aluminum or magnesium antiacids, iron, zinc, sucralfae, milk & dairy
can inc warfarin or theophylline levels
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METRONIDAZOLE (flagyl) | show 🗑
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DAPTOMYCIN | show 🗑
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RIFAMPIN | show 🗑
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RIFAXIMIN | show 🗑
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show | broad spectrum topical bactericidal agent
forms pores or holes in memebrane
often found in OTC antibacterial agents
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BICITRACIN | show 🗑
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show | SULFAMETHOXAZOLE/TRIMETHOPRIM (bactrim)
FOSFOMYCIN
NITROFURANTOIN (macrobid)
FLUROUINOLINES (Cipro or Levofloxacin)
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show | SULFAMETHOXAZOLE/TRIMETHOPRIM (bactrim)
FLUROUINOLINES (Cipro or Levofloxacin)
SULFAMETHOXAZOLE/TRIMETHOPRIM (bactrim)
FLUROUINOLINES (Cipro or Levofloxacin)
CEPHALEXIN, CEFOTAXIME, CEFTRIAXONE
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Complicated UTI treatment | show 🗑
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show | FLUOROUINOLONES (Cipro) follow by DOXYCYCLINE
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show | bacteriostatic-low concentration
bactericidal-high concentration
uses: lower UTI, prophylaxis, recurrent UTIs
AE: GI, pulmonary rxn, hematologic effecs, peripheral neuropathy, birth defects, CNS effects
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show | prodrug, decomposes into ammonia and formaldehyde causing denaturing of the bacteria
used for chronic lower UTIs
contraindicated in pts with renal disease or liver disease
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Chlamydia Trachomatis treatment | show 🗑
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show | FLUOROUINOLINES: 1st drug: CEFTRIAXONE, 2nd drug: AZITHROMYCIN
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Trichomonas vaginalis treatment | show 🗑
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show | must contain 2 or more drugs to which the organism is sensitive
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First Line TB drug therapy | show 🗑
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show | Fluroquinolones (Levofloxacin, moxifloxacin)
Kanamycin, amidacin, capreomycin, streptomycin
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show | para-aminosalicylic acid, ethionamide, cycloserine
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show | admin orally/IV, used in active TB (in combo), latent TB (alone or in combo with rifapentine)
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Isoniazid MOA | show 🗑
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show | hepatoxicity-need monthly levels drawn, peripheral neuropathy, CNS effects (seizures, dizziness, ataxia, depression), anemia-from Vit B6 deficiency, can give pyridoxine to prevent
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Isoniazid Drug Interactions | show 🗑
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show | broad spectrum atnibx, inhibits protein systhesis, always give in combo to prevent resistence
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show | Active TB, pulmonary TB (drug of choice), other bacterial infections, leprosy
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Rifampin AE, drug interactions | show 🗑
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Rifapentine and Rifabutin | show 🗑
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Pyrazinamide | show 🗑
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Pyraziamide & Rifampin | show 🗑
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Pyraziamide AE | show 🗑
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Ethambutol | show 🗑
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show | optic neuritis = blurred vision, visual disturbances, allergic rxns, GI upset
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show | second line drug for TB treatment, injectable antibx, bateriostatic, used for TB resistant to primary agents
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Capreomycin AE | show 🗑
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show | Amikacin, Kanamycin, streptomycin, AE: kidney toxicity, ototoxicity
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Para-aminosalicylic Acid (PAS) | show 🗑
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show | similar to isoniazid, less active, used in TB tx
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Cycloserine | show 🗑
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show | new drug, faster and better than all other TB drugs, inhibits ATP synthesis, causes prolonged QT interval and hepatoxicity
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show | 4 drugs isoniazid, rifampin, pyrazinamide, ethambutol for 2 months
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Tx for active TB Continuation phase | show 🗑
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show | Rifampin, pyrazinamide, themabutol x 6 months
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Tx for latent TB | show 🗑
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show | rifampin can interact with drugs used to tx HIV, use RIFABUTIN, = less likely to interact with HIV anitviral drugs
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show | Azithromycin and clarithromycin used prophylactically
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Tx fo active MAC infection | show 🗑
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show | skin smears are (-), 1-5 skin lesions, tx: 6 months of rifampin and dapsone
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show | skin smears are (+), 6 or > lesions, tx: 12 months of rifampin, dapson, clofazimine
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Dapsone | show 🗑
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show | used to tx leprosy, always combined with rifampin or dapsone
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Polyenes: Amphotericin B | show 🗑
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Polyenes: Amphotericin B toxicity | show 🗑
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show | used for systemic fungal infections, AE: infusion rxn, nephrotoxicity (infuse saline), hypokalemia, bone marrow suppression
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show | block synthesis of ergosterol, broad spectrum, alternative to amphotericin B, oral, inhibit CYP450 enzymes, can increase levels of other drugs
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show | drug of choice for blastomycsis, histoplasmosis, paracoccidioidomycosis, sportrichosis, and alternaitve for aspergillosis, candidiasis, cocciodiodomycosis
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Azoles: Itraconazole AE/drug interaction | show 🗑
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Other Zoles | show 🗑
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show | disrupt fungal cell wall-used for candida infections, given IV
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show | disrupt fungal cell wall-used for aspergillis and candida infections, given IV
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show | narrow spectrum antifungal, can develop resistance, disrupts fungal DNA and RNA synthesis
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Pyrimidine Analog: Flucytosine-uses/AE | show 🗑
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Agents for Superficial Fungal Infections | show 🗑
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show | agent for superficial fungal infection that inhibition of squalene exposidase, which inhibits sysnthesis of ergosterol
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Polyenes: Nystatin | show 🗑
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Griseofulvin | show 🗑
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show | used for fungal infections of the nails
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show | 1st choice for HSV and VZV, suppresses synthesis of viral DNA, oral/IV/topical, 1/2 life 2hrs. AE: reversible nephrotoxicity tx'd w/slow infusion and hydration,
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show | tx HSV, prodrug converted to penciclovir, longer 1/2 life, higher blood levels than acyclovir
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show | tx HSV, prodrug converted to acyclovir, longer 1/2 life, higher blood levels, more AE in immunosuppressed pts
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Foscarnet | show 🗑
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Penciclovir | show 🗑
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show | topical drug used for cold sores, blocks viral entry into host cell, used for recurrent HSV
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show | suppress replication of viral DNA.
Ganciclovir, Valganciclovir, Cidofovir, Foscarent
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show | tx CMV, causes bone marrow suppression and some reproductive toxicity
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Interferon Alfa-2b | show 🗑
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Pegasys | show 🗑
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show | Interferon alfa-2b w/PEG, tx Hep C
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Interferon Alfa-2b + Ribavurin (Rebetol) | show 🗑
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Interferon Alfa-2b + Boceprevir or Telaprevir | show 🗑
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show | flu-like symptoms, depression, bone marrow suppression, thyroid dysfxn, heart damage, Ribavurin is teratogenic and embryolethal can cause hemolytic anemia
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Interferon Alfa-2b or Peginterfrom Alfa 2a | show 🗑
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show | tx Hep B, given orally inhibits viral DNA synthesis, tx pts with highest risk d/t prolonged tx
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show | lamivudine, adefovir, entecavir, telbivudine, tenofovir
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show | neuraminidase inhibitor (enzyme for viral replication), used to tx influenza, causes N/V and hypersensitivity rxn
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show | antiviral used to tx RSV, inhaled or oral, category X, can precipitate in mechanical breathing apparatus, should not be used with resp assistance.
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show | monoclonab antibody used for RSV prevention in preamature infants and those with chronic lung disease, causes hypersensitivity rxns
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RTIs: Non-Nucleosides | show 🗑
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RTIs: Nucleosides/Nucleotides | show 🗑
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show | tx HIV, given po/IV, short 1/2 life, penetrates CNS, causes anemia, neurtorpenia, and myopathy. used in pregnancy and delivery
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RTI: Nucleosides/Nucleotides: Didanosine | show 🗑
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show | tx HIV, oral, causes fatal hypersensitivity rxn
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RTI: Nucleosides/Nucleotides: Tenofovir | show 🗑
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Nucleosides/Nucleotides: Efavirenz (Sustiva) | show 🗑
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show | tx HIV, oral, causes rash and hepatoxicity, interfere with liver ezymes
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show | tx HIV, oral, causes rash, hepatoxicity, and pancreatitis, interfere with liver enzymes
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show | when used in combo with NRTIs can reduce viral load to undectable levels, all have SE, mostly GI, glucose intolerance, hyperlipidemia, possible bone loss, inhibit liver enzymes, boosted with Ritonavir
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Protease Inhibitors Agents in HIV TX | show 🗑
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Integrase Inhibitors in HIV tx: Raltegravir | show 🗑
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show | blocks entry of HIV into CD4 cells, 36 amino acid peptide, injected SC 2x/day,
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CCR5 Antagonist in HIV tx: Maraviroc | show 🗑
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show | used for HIV pre-exposure prophylaxis (PREP), can reduce infection by 44-73%
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NNRTI-based Efavirenz + Lamivudine or Emtricitabine + Zidovudine or Tenofovir | show 🗑
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Occupational exposure to HIV | show 🗑
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show | consists of 3 drugs: 2 from different classes
NNRTI + 2 NRTIs, PI + 2 NRTIs, Raltegravir + 2 NRTIs
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show | inhibit P450 the most = drug interactions
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PI and NNRTI drug interactions | show 🗑
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Chloroquine | show 🗑
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Choroquine MOA, AE | show 🗑
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Mefloquine | show 🗑
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Mefloquine MOA, AE | show 🗑
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Mefloquine drug interactions | show 🗑
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Primaquine | show 🗑
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Primaquine AE | show 🗑
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Artemether/Lumefantrine (Coatrem) | show 🗑
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show | some CNS effects (HA, dizziness), prolong QT interval, metabolized by CYPs so other drugs can affect levels
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Artesunate | show 🗑
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Quinine | show 🗑
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Quinidine Gluconate | show 🗑
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show | anti-malarial tx, prophylaxis and tx of malaria caused by chlorquine-restiant plasmodia, used for both erythocyctic and exoerythrocytic (hepatic) forms
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Iodoquinol | show 🗑
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Metronidazole (Flagyl) uses | show 🗑
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Metronidazone (Flagyl) MOA | show 🗑
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show | Nausea, HA, hypersensitivity rxn, drug int: disulfiram-like effect, drugs that affect CYPA4
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Tindazole | show 🗑
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Giardiasis Tx | show 🗑
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Nitazoxanide | show 🗑
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show | disrupts protozoal energy metabolism, causes GI upset & yellow discoloration of eyes, binds to proteins, possible intx w/ other protein binding drugs
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show | Metronidazole, Tinidazole
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Lice Tx | show 🗑
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show | Permethrin, Ivermectin
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show | used against pinworms, roundworm, hookworm, whipwork, filariae, decrease glucose transport and ATP = kills worms, oral, minimal absorption, takes 2-3 days to work, well tol,, teratogenic in animals
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Anti-Helmintics (worm infections): Albendazole | show 🗑
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show | used for pin, hook and round worms, depolarizing neuromuscular blocker, cholinesterase inhibitor = paralyzes worm, minimal amts absorbed, most stays in GI tract
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Anti-Helmintics (worm infections): Ivermectin | show 🗑
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