Drugs and their Classes/Mechanisms Flashcards
Penicillin G (IV, IM, limited oral)
natural penicillin, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*DOC syphillis and rheumatic fever
Benzathine PCN (IM)
natural penicillin, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*DOC - syphillis
Procaine PCN (IM)
natural penicillin, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
PCN V (oral)
natural penicillin, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
Nafcillin (IV, IM)
penicillinase resistant penicillin, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*DOC MSSA
Dicloxacillin (oral)
penicillinase resistant penicillin, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*DOC MSSA
Oxacillin (IM, IV, oral)
penicillinase resistant penicillin, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*DOC MSSA
Methacillin - testing purposes only
penicillinase resistant penicillin, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
Ampicillin (oral)
extended spectrum pcn, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*DOC Lysteria
Amoxicillin (oral)
extended spectrum pcn, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*DOC Lysteria
Piperacillin (parenteral)
Anti-pseudomonal PCN, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*must be used in combination wtih aminoglycosides
*DOC for pseudomonas infections
Ticarcillin (parenteral)
Anti-pseudomonal PCN, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*must be used in combination wtih aminoglycosides
*DOC for pseudomonas infections
Mezlocillin (parenteral)
Anti-pseudomonal PCN, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*must be used in combination wtih aminoglycosides
*DOC for pseudomonas infections
Carbenicillin (parenteral)
Anti-pseudomonal PCN, inhibitor of cell wall synthesis
beta-lactam ring targets PBPs and prevents transpeptidation (cross-links)
*must be used in combination wtih aminoglycosides
*DOC for pseudomonas infections
Clavulanic acid
PCN combination agent, extends beta lactamase resistance
Sulbactam
PCN combination agent, extends beta lactamase resistance
Tazobactam
PCN combination agent, extends beta lactamase resistance
Cefazolin (IM, IV)
First generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, narrow spectrum
- DOC for surgical prophylaxis
- DOC for E. coli, Klebsiella, Proteus
Cephalothin (IM, IV)
First generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, narrow spectrum
*DOC for E. coli, Klebsiella, Proteus
Cephalexin (oral)
First generation cephalosporin, inhibitor of cell wall synthesis, bactericidal
*DOC for E. coli, Klebsiella, Proteus
Ceflacor (oral)
Second generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, intermediate spectrum
- DOC for E. coli, Klebsiella, Proteus
- DOC for Moraxella catarrhalis
Cefuroxime (IM, IV)
Second generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, intermediate spectrum
- only 2nd generation that can cross blood brain barrier
- DOC for E. coli, Klebsiella, Proteus
- DOC for Moraxella catarrhalis
Cefprozil (oral)
Second generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, intermediate spectrum
- DOC for E. coli, Klebsiella, Proteus
- DOC for Moraxella catarrhalis
Ceftrizxone (Rocephin, IM, IV)
Third generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, broad spectrum
- CNS penetration
- DOC for N. gonorrhoeae
- DOC for Penicillin resisttant Strep. pneumoniae
- DOC for E. coli, Klebsiella, Proteus
- DOC for Moraxella catarrhalis
- DOC for Salmonella
Cefotaxime Sodium (IM, IV)
Third generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, broad spectrum
- CNS penetration
- DOC for Moraxella catarrhalis
- DOC for Salmonella
Cefoperazone (IM, IV)
Third generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, broad spectrum
- CNS penetration
- can be combined wtih aminoglycoside against Pseudomonas
- metabolized by liver
- DOC for Moraxella catarrhalis
- DOC for Salmonella
Ceftazidime (IM, IV)
Third generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, broad spectrum
- CNS penetration
- can be combined wtih aminoglycoside against Pseudomonas
- DOC for Moraxella catarrhalis
- DOC for Salmonella
Cefixime (oral)
Third generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, broad spectrum
- CNS penetration
- can be combined wtih aminoglycoside against Pseudomonas
- DOC for Moraxella catarrhalis
- DOC for Salmonella
Cefepime (IV)
Fourth generation cephalosporin, inhibitor of cell wall synthesis, bactericidal, broad spectrum
Empiric therapy of last resort for serious infections
Ceftaroline fosamil (IV)
Fifth generation cepalosporin, inhibitor of cell wall synthesis, bactericidal
Effective against MRSA, VRSA, CABP
Aztreonam (IM, IV)
Monobactam, beta-lactam inhibitor of cell wall synthesis
-good alternative for people allergic to penicillin
Imipenem + cilastatin (IV)
Carbapenem, beta-lactam inhibitor of cell wall synthesis, broadest spectrum
*DOC for Enterobacter and Serratia
Meropenem (IV)
Carbapenem, beta-lactam inhibitor of cell wall synthesis, broadest spectrum
*DOC for Enterobacter and Serratia
Ertapenem (IV, IM)
Carbapenem, beta-lactam inhibitor of cell wall synthesis`
Vancomycin (IV, oral)
Inhibitor of cell wall synthesis, prevents elongation fo the peptidoglycan and cross-linking of peptide chain, binds to D-ala D-ala terminal segment, bacteriocidal
*DOC against MRSA, but drug of last resort due to emergence of VRE
Fosfomycin (oral)
Inhibitor of cell wall synthesis by inhibiting reduction of NAG to NAM
Bacitracin (topical)
Inhibitor of cell wall synthesis by interfering with final dephosphorylation step
Used in combination wtih neomycin and polymxins
Cycloserine (oral)
Inhibitor of Cell wall synthesis, inhibits D-ala from being incorporated, inhibitiing attachemtn of the peptide chain to the peptidoglycan unit
-serious CNS side effects
Erythromycin (oral, IV)
macrolide, inhibitor of protein synthesis, binds reversibly to 50S ribosome, bacteriostatic
-severe GI side effects
Clarithromycin (oral)
macrolide, inhibitor of protein synthesis, binds reversibly to 50S ribosome, bacteriostatic
-few GI side effects
Azithromycin (oral)
macrolide, inhibitor of protein synthesis, binds reversibly to 50S ribosome, bacteriostatic
- not metabolized by liver, so few drug interactions
Telithromycin (oral)
Ketolide, inhibitor of protein synthesis, binds to 50S ribosome
-reversible inhibitor of P450 enzymes, and metabolized by the liver = serious hepatotoxcity
Clindamycin (oral, IV)
inhibitor of protein synthesis, binds to 50S ribosome; may be bacteriostatic or bacteriacidal depending on concentration
*DOC in osteomyelitis - good bone penetration
Dalfopristin + Quinupristin (Synercid, IV)
Streptogramin - inhibits translation by blocking ribosome fx, bacteriocidal
Dalfopristin binds to 70S or 50S and inhibits early phase
Quinupristin binds to 50S and inhibits late phase
*treats VRE, MSSA, MRSA, PCN resistant strep
Linezolid (IV, oral)
inhibitor of protein synthesis, binds to 50S ribosome, prevents the formation of a functional 70S initiation complex
- MAO inhibitor
- 100% bioavailability
- treats VRE, MRSA
Streptomycin (IV,IM)
Aminoglycosides, Inhibit protein synthesis by binding to 30S subunit, Bacteriocidal, but require oxygen and active transport to get inside bacterial cell wall (therefore combine with Inhibitor of Cell wall synthesis)
-effective against Pseudomonas
Gentamicin (IV, IM, topical)
Aminoglycosides, Inhibit protein synthesis by binding to 30S subunit, Bacteriocidal, but require oxygen and active transport to get inside bacterial cell wall (therefore combine with Inhibitor of Cell wall synthesis)
-effective against Pseudomonas
Tobramycin (IV, IM, topical)
Aminoglycosides, Inhibit protein synthesis by binding to 30S subunit, Bacteriocidal, but require oxygen and active transport to get inside bacterial cell wall (therefore combine with Inhibitor of Cell wall synthesis)
-effective against Pseudomonas
Amikacin (IV, IM)
Aminoglycosides, Inhibit protein synthesis by binding to 30S subunit, Bacteriocidal, but require oxygen and active transport to get inside bacterial cell wall (therefore combine with Inhibitor of Cell wall synthesis)
-effective against Pseudomonas
Neomycin (oral, topical)
Aminoglycosides, Inhibit protein synthesis by binding to 30S subunit, Bacteriocidal, but require oxygen and active transport to get inside bacterial cell wall (therefore combine with Inhibitor of Cell wall synthesis)
-effective against Pseudomonas
Chloramphenicol (topical, oral, IV)
Inhibits protein synthesis, reversibly binds to 50S preventing TRNA attachment
- Never a first choice
- Best CNS and eye penetration
Tetracycline (oral, topical)
Tetracyclines, inhibitor of protein synthesis by binding to 30S to prevent tRNA attachment, bacteriostatic
- DOC Mycoplasma pneumoniae, Chlamydiae, rickettsaie
- deposits in bones so not for kids, pregnant women
Doxycycline (oral)
Tetracyclines, inhibitor of protein synthesis by binding to 30S to prevent tRNA attachment, bacteriostatic
- DOC Mycoplasma pneumoniae, Chlamydiae, rickettsaie
- deposits in bones so not for kids, pregnant women
Minocycline (oral)
Tetracyclines, inhibitor of protein synthesis by binding to 30S to prevent tRNA attachment, bacteriostatic
- DOC Mycoplasma pneumoniae, Chlamydiae, rickettsaie
- deposits in bones so not for kids, pregnant women
Tigecycline
Glycylcyclines, inhibitor of protein synthesis by binding to 30S to prevent tRNA attachment, bacteriostatic
- activity against MRSA, MRSE, PCN resistant strep, VRE