Antibiotics and Cancer Flashcards
Define antimicrobial drug
a drug that is active against bacteria, virus, fungi, or parasite
Define antibiotic drug
a drug that is only actively against bacteria
T/F: are all antimicrobials also antibiotics?
False
all AB = AM but not all AM = AB
What is the main characteristic of Gram-positive bacteria
a thick cell wall
What are the 2 main characteristics of Gram-negative bacteria
Outer membrane
thin cell wall
Define bacteriostatic antibiotics
drugs that prevent multiplication and continued growth of bacteria
- require host immune system
Define Bactericidal antibiotics
drugs that actively kill bacteria
Define bactericidal concentration-dependant
drug is given at a high dose so the effects are maintained for a longer period of time
Define bactericidal time-dependent
must maintain the correct level of drug long enough to kill the bacteria
what is a broad spectrum drug?
works for many types of organism
used for when we don’t know what the infection is
what is a narrow spectrum drug?
targets a specific infection the patient is known to have
what 3 factors must be taken into consideration when selecting treatment of drugs
identity/susceptibility of bacteria
host specific factors - allergies, renal function
Drug specific factors - DDI, route
What class of antibiotic ends with -cillin
Penicillins
What class of antibiotic begins with Cef- or Ceph-
Cephalosporins
What class of antibiotic ends with -penem
Carbapenems
What class of antibiotic ends with -vancin
Glycopeptides
What class of antibiotic ends with -mycin or -micin
Aminoglycosides AND macrolides
What class of antibiotic ends with -cyclin
Tetracyclines
What class of antibiotic ends with -floxacin
Fluoroquinolines
What class of antibiotic ends with -idazole
Nitroimidazole
What class of antibiotic begins with Sulfa-
Antifolates
What drug class is tigecyclin NOT in
tetracyclines
What is the general MOA of antibiotics
inhibition of the cell wall, cell membrane, protein synthesis, DNA synthesis, or DNA strand
What are the general AEs of antibiotics
GI, hypersensitivity, hypotension, ototoxicity, nephrotoxicity, DDI, photosensitivity, arthralgia, myalgia, thrombocytopenia, allergy