PharmExam2Needtoknow Flashcards
What is the treatment for PCP?
Bactrim (2 DS TID x 21 days) or if allergic, then pentamadine
What is the treatment for MRSA?
Vanco, bactrim, ceftaroline, tetracyclines if on skin, mupiricin in the nose, daptomycin
What drugs are active against pseudomonas?
Piper, ticer, ceftazidime, imipenem, flouroquinolones
What drug is associated with disulfuriam reaction?
flagyl! cephalosporins
What drugs do you need to measure trough?
vanco, aminoglycosides
What is the chance that someone with a PCN allergy will have a cephalosporin allergy?
5%
Red man’s disease caused by?
Vanco (hypotension and erythematous rash
what drug can cause thrombophlebitis?
IV erythromycin
Tetracycline ADRs?
Staining teeth
Nephrotoxicity/hepatotoxicity
Photosensitivity
Macrolide ADRs?
Stomatitis
Clarithromycin causes metallic taste
Erythromycin initiates peristalsis and can be used for gastroparesis
Tinnitus or impaired hearing
IV Erythromycin can cause thrombophlebitis
What drug most likely cause pseudomembranous colitis?
clindamycin. oh clinda you suck!
What drug can treat gastroperisis?
erythromycin
Erythromycin and clarithromycin ____________ (inhibit/induce) CYT P450
inhibit!
What drug is contraindicated in myasthenia gravis patients?
telithromycin (QT prolong too)
What drug can cause either reversible dose dependent anemia or aplastic anemia?
chloramphenicol (useful in meningitis)
What drug causes gray baby?
chloramphenicol
ADRs of sulfonamides?
Skin rashes that can progress to SJS Crystalluria GI distress Hepatitis Hematopoietic toxicity In G6PD deficiency they can cause hemolytic anemia photosensitivity
Should you base bactrim off the trimethoprim or sulfamethoxizole?
trimethoprim
ADRs of bactrim?
Megaloblastic anemia with low intake of folic acid
Rash
photosensitivity
What drug can cause tendon rupture?
fluoroquinolones (QT prolong too)
What drug cause pulmonary fibrosis with long term use?
nitrofurantoin
First line drugs of TB?
Isoniazid (INH), ethambutol, Pyrazinamide (PZA) and rifampin
Isoniazid ADRs
hepatitis and peripheral neuropathy
ethambutol ADRs
optic neuritis
impaired red-green color discrimination
hepatitis
Pyrazinamide ADRs
hepatitis, hyperuricemia
Rifampin ADRs
Red!
CYP450 inducer!
Drug of choice for TB with HIV
rifabutin
Similar to sulfonamides, this drug can cause hemolytic anemia in leprosy pts with G6PD
dapsone
What leprosy tx prevents erythema nodosum
clofazamine
DOC for systemic mycoses
amphotericin B
amphotericin B ADRs
nephrotoxicity, infusion reactions, hypokalemia and bone marrow suppression
azoles _____________ (inhibit/induce) CYP450
inhibit
What drug causes cardiosuppression as a negative inotrope?
azoles (needs gastric acid to work - tetracyclines do too)
what drug binds to surfactant?
daptomycin
pseudomonas pt with renal failure?
aztreonam
What drug can potentiate the effects of amphoterrible so you can give a lower dose?
flucytosine
what is the drug of choice for invasive aspergillosis?
voriconazole
What drug lowers sex hormones?
ketoconazole
What oral anti fungal is used for topical infections?
griseofulvin
causes crystaluria in presence of dehydration?
acyclovir and sulfonamides
what drug causes retinal detachment?
gangicyclovir
What drug must be refrigerated?
trifluridine
Heart failures, arrhythmias, seizures, pancreatitis ADR
foscarnet
typical HART therapy
2 NRTIs plus NNRTI or PI
Most common ADR in NNRTI
rash which can progress to SJS
what drugs cause neuropsychogenic reactions?
efavirenz (preferred initial NNRTI) and pegylated interferon, mefloquine
What is ritonavir used for?
to increase or boost protease inhibitors
What drug causes insulin resistance?
Protease inhibitor
approved to treat severe RSV and HCV
Ribavirn
what drugs aerosol can cause apnea, pneumothorax and cardiac arrest?
ribaviron
Used for chronic active hepatitis, genital warts, hairy cell leukemia, CML, Kaposi’s sarcoma, renal carcinoma, malignant melanoma and multiple myeloma
Interferon
Active vs protozoa as well as H.pylori, B. fragilis and C. Difficile as well as anaerobic bugs
Metronidazole
Why are G6PDers sad?
Thy can’t take sulfonamides (bactrim), Antimalarials (primaquine), or Dapsone
What drug causes high doses can cause retinal damage
chloroquine
What drugs cause severe neuropsychiatric syndrome associated with hallucinations, anxiety, confusion and seizures
mefloquine
DOC for toxo in HIV patients?
pyrimethamine, sulfadiazine, and Leucovorin
What drug lowers seizure threshold?
imipenim
Drug of choice for river blindness?
ivermectin
What helminth drug causes NVD, delirium, hallucinations
albendazole
DOC for scabies?
permethrin
No need to comb out and remove nits in what drug
spinosad
A malaria drug that’s used in HIV wasting syndrome by stimulating appetite
Atovaquone
What 4 drugs induce hepatic enzymes /CYTP450?
Griseofulvin, rifampin, isoniazid, carbamazepine
What is linezolid active against?
VRE and MRSA
SJS causers
sulfonamides + dilantin + flucnazole