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75 Cards in this Set

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What are the two subgroups of the Cell Wall Synthesis Inhibitors?
B-Lactam Compounds
B-Lactamase Inhibitors
(also includes "others")
What are the 4 drug classes of B-Lactam Compounds?
Penicillins
Cephalosporins
Monobactams
Carbepenems
What are the 3 B-Lactamase Inhibitor drugs?
Clavulanic Acid
Sulbactam
Tazobactam
What are the 3 drugs listed in the "others" category of Cell Wall Synthesis Inhibitors?
Vancomycin
Daptomycin
Cycloserine
How are the Cell Wall Synthesis Inhibitors selective in the body?
Since cell walls are only present in Prokaryotes, this allows for drug selectivity.
Which class of drug inhibits the transpeptidation reaction of bacterial wall synthesis by binding to the PBPs, and preventing cross-linking of the Peptidoglycan?
Penicillins
How are Penicillins excreted from the body?
Kidneys
Which organisms are targeted by Penicillins G and V?
Gram (+) & (-) Cocci
Gram (+) Bacilli
Spirochetes
Which specific Penicillins are resistant to Staphylococcal B-Lactamase?
Methicillin
Nafcillin
Oxacillin
Dicloxacillin
Which Penicillins would be the drug of choice for Penicillin-resistant and Methicillin-susceptible strains of Staphylococci?
Penicillins that are resistant to Staphylococcal B-Lactamase:
1. Methicillin
2. Nafcillin
3. Oxacillin
4. Dicloxacillin
What are the Extended-Spectrum Penicillins?
Ampicillin
Amoxicillin
Ticarcillin
Piperacillin
Which Penicillins are similar to Penicillin G, but have more activity against Gram (+) Bacilli?
Extended-Spectrum Penicillins:
Ampicillin
Amoxicillin
Which Penicillin is used as prophylaxis for extensive oral surgery?
Amoxicillin
Ampicillin and Amoxacillin are widely used for which type of infections?
Respiratory Infections
Which Penicillins have more activity against Gram (-) Bacilli?
Extended-Spectrum Penicillins:
Ticarcillin
Piperacillin
When Ticarcillin or Piperacillin is used in combination with Aminoglycosides or with Fluoroquinolones, what type of infections will they treat?
Pseudomonal infections outside the urinary tract
What is the main difference between Penicillins and Cephalosporins?
Cephalosporins have increased resistance to B-lactamases, giving it a broader spectrum of activity (especially with Gram (-) organisms)
How are the Cephalosporin generations divided?
Based on their antimicrobial activity
List the drugs in all 4 Generations of Cephalosporins
1st: Cephazolin
2nd: Cephamandole & Cefotetan
3rd: Ceftriaxone
4th: Cefepime
Which generation of Cephalosporins are a Penicillin G substitute?
1st: Cephazolin
Gram (-) Cocci, E.coli, and Klebsiella are all treated by which drug
Cephazolin
(1st generation Cephalosporin)
Which two Cephalosporin Generations are known for their extended Gram (-) activity?
2nd and 3rd
What is the difference between the two 2nd generation Cephalosporin drugs?
Cephamandole: H. influenza, Sinusitis, Otitis, Lower respiratory infections.
Cefotetan: Anaerobic Organisms, Perotonitis, Diverticulitis.
What is the drug of choice for Meningitis?
Ceftriaxone
(3rd generation Cephalosporin)
What is the drug named that is more resistant to B-Lactamases than Cephamandole and Cefotetan, but has similar organism coverage?
Cefepime
(4th generation Cephalosporin)
Which class of drugs has no use for treatment of Gram (+) organisms or anaerobes?
Monobactams
Aztreonam is the drug found in which class of B-Lactam Compounds?
Monobactams
If a patient cannot tolerate Penicillin or Cephalosporins, what is the next drug that is considered?
Aztreonam (Monobactam)
Which drug is prescribed together with Cilastatin, which inhibits Renal Dehydropeptidase?
Imipenem - Carbepenem class
What is unique about the B-Lactamase Inhibitors?
They have no antibacterial activity by themselves, so they must be formulated with B-Lactamase susceptible Antibiotics.
What is the MOA of B-Lactamase Inhibitors?
Inhibits many bacterial B-Lactamases, protecting degradation of susceptible antibiotics.
Which drug bind to the end of the nascent peptidoglycan?
Vancomycin
which drug has therapeutic use for Gram (+) activity, particularly Staphylococci, treating serious infections: Sepsis, Endocarditis, and Meningitis
Vancomycin
Which drug has the AE "Red Man Syndrome"
Vancomycin
Which drug can cause irritation at the site of injection?
Vancomycin
Which drug is an effective alternative to Vancomycin?
Daptomycin
What is Daptomycin a contraindication for?
Nitric Oxide treatment for Pneumonia (reacts with the pulmonary surfactant)
Which drug's MOA entails inhibition of the incorporation of D-Alanine into the peptidoglycan?
Cycloserine
Which drug is a second line therapy for Tuberculosis?
Cycloserine
What are the two subgroups of DNA Synthesis Inhibitors?
Antifolate Drugs
DNA Gyrase Inhibitors
What are the two main classes of the antifolate drugs?
Sulfonamides
Pyrimidines
Sulfadiazine, Sulfamethoxazole, and Sulfasalazine are all drugs under which class?
Sulfonamides (Antifolate drugs)
How do Sulfonamides work?
They are structurally similar to PABA so they inhibit DNA synthesis
Sulfadiazine + Pyrimethamine together is the drug of choice for which infection?
Which other infection does it treat?
Drug of choice for: Toxoplasmosis
Also treats: Leishmaniasis
Which class of drugs have activity against some Protozoa?
Sulfonamides
How to Sulfonamides become Bacteriocidal?
They must be combined with DHFR Inhibitors
Sulfamethoxazole + Trimethoprim treats?
UTIs
Pneumonia
Respiratory infections
Systemic Salmonella
Sulfasalazine treats which condition?
Ulcerative Colitis
List all the drugs involved in the treatment of UTIs
Sulfamethoxazole alone
Sulfamethoxazole + Trimethoprim
Trimethoprim (Acute UTIs)
Ciprofloxacin
Levofloxacin
List the Pyrimidine drugs
Trimethoprim
Pyrimethamine
How to Pyrimidines work?
DHFR Inhibitors
How is resistance different between the two Antifolate classes?
Sulfonamides:
PABA Overproduction = competition.
Changes in target structure.

Pyrimidines:
Decreased permeability.
DHFR overproduction/change.
Megaloblastic Anemia, Leukopenia, and Granulocytopenia are all adverse effects of which drug class?
Pyrimidines
DNA Gyrase inhibitors include the _____________ group
Fluoroquinolone
What are the two Fluoroquinolone drugs?
Ciprofloxacin
Levofloxacin
How do Fluoroquinolones work?
They inhibit bacterial topoisomerase II (DNA Gyrase) and topoisomerase IV, which then inhibits DNA Synthesis
Cartilage damage and arthropathy are adverse effects found in which drugs?
Fluoroquinolones
What kind of bacteria are killed by Fluoroquinolones?
Gram (-) Aerobic Bacteria
UTI, Bacterial Diarrhea, and drug-resistant respiratory infections are treated with which drugs?
Ciprofloxacin
Levofloxacin
What is the drug of choice for prophylactic treatment of Anthrax?
Ciprofloxacin
What are the 6 classes of drugs under the Protein synthesis inhibitors?
Tetracyclines
Macrolides & Ketolides
Clindamycin
Streptogramins
Oxazolidinones
Aminoglycosides
Where do Tetracyclins bind?
30S Subunit on the bacterial Ribosome
What is the drug of choice for Rikettsia infections?
Tetracyclines
Which drug treats H.pylori associated ulcers?
Tetracycline
Which drug has the adverse effect of Calcium deposition in the bones and teeth?
Tetracycline
List the classes of protein synthesis inhibitors which bind to the 50s subunit?
What is their other commonality?
Macrolides and Ketolides
Clindamycin
Streptogramin
Oxazolidinones

Commonality: Gram (+) Bacteria only
What is the drug of choice for Corynebacterial infections?
Macrolides and Ketolides
(Telithromycin, Azithromycin, Clarithromycin, Erythromycin)
Which class of drugs are used in the prophylaxis of Endocarditis in patients with vulvular heart disease undergoing extensive dental procedures and allergic to penicillin?
Clindamycin
Staphylococcal infections and Vancomycin-resistant strains of E.faecium are treated using which class of drug?
Streptogramins (Quinupristin-Dalfopristin)
Which two classes of drugs are used for treatment of Vancomycin-resistant strains of E.faecium?
Streptogramins
Oxazolidinones
Nosocomial Pneumonia and community-acquired Pneumonia are treated using which drug?
Linezolid (Oxazolidinones)
What is the DDI for Macrolides?
Inhibit P450 so blood concentrations increase for many other drugs
Which protein synthesis inhibitor passively crosses the outer membrane, but actively transports through the cell membrane?
How is the active transport enhanced?
Aminoglycosides
Enhanced by Penicillins and Vancomycin
Which protein synthesis inhibitor class treats Gram (-) bacterial infections only?
Aminoglycosides (Neomycin, Kanamycin, Gentomycin, Streptomycin)
Which protein synthesis inhibitor is contraindicated in pregnancy and children under 8 years old?
Tetracyclines