β-lactam antibiotics Flashcards
What is the drug of Natural penicillins is not given orally ?
1- Benzyl penicillin (Penicillin-G)
2- Procaine penicillin
3- Benzathine penicillin (long acting)
What is the drug of Natural penicillins is Acid-resistant (given orally) ?
Phenoxymethyl penicillin
What is the uses of Benzathine penicillin ( Penicillin G ) ?
1- rheumatic fever 2- syphilis 3- Benzathine penicillin 4- neurosyphilis 5- gas gangrene 6- leptospirosis
Ampicillin is drug of choice for ?
1- listeria meningitis
2- urinary tract infection caused by E. faecalis
Ampicillin should be given on ?
empty stomach
Nafcillin is excreted mainly in ?
bile
Nausea and diarrhea may be caused by oral drugs like L
amoxicillin and ampicillin
What is the drug that causes more suppression of
normal microbial flora ?
ampicillin
Procaine penicillin in high doses can result in ?
seizures
Methicillin is the most common antibiotic implicated in causing interstitial ?
nephritis
Oxacillin can cause ?
hepatitis
nafcillin is involved in causing ?
neutropenia
Augmentin is composed of ?
Clavulanic acid + amoxicillin
Give example of drug in the first generation ?
1- cephazoline الزول
2- cephalothin غسل لثته
3- cephalexin بالسيفاليكسين
Cefazolin is used in ?
surgical prophylaxis
What is the uses of drug in the first generation ?
treatment of skin and soft tissue infections
What is the drug of second generation ?
1- cefuroxime روكسيم
2- cefoxitin و اكستين
3- cefaclor غسلوا ملابسهم بالكلور
4- cefotetan من الديدان
Second generation Do not pass BBB except ?
cefuroxime
Whatbis the uses of second generation ?
1- Respiratory tract infection
2- Urinary tract infections
Wjat is the uses of first generation of cephalosporin ?
treatment of skin and soft tissue infections
Cefazolin is used for ?
surgical prophylaxis
second generation of cephalosporin Do not pass BBB except ?
cefuroxime
What is the most active cephalosporins against penicillin-resistant pneumococci ?
Cefotaxime and ceftriaxone
What is the drugs in the first generation?
1- cefazolin
2- cephalothin
3- cephalexin
First generation is ?
1- Broad spectrum.
2- Not effective in meningitis (Do not pass BBB)
First generation is used in treatment of ?
skin and soft tissue infections
What is the drug is used in surgical prophylaxis ?
Cefazolin
What is the drugs in the second generation ?
1- cefoxitin
2- cefuroxim
3- cefaclor
4- cefotetan
The drugs in the second generation is not pass BBB except ?
cefuroxime
What is the uses of second generation ?
1- Respiratory tract infection
2- Urinary tract infections
What is the drugs in the third generation ?
1- ceftazidime
2- cefotaxime
3- ceftriaxone
4- cefoperazon
What is the drug of third generation that has Long duration and used once daily ?
Ceftriaxone
What is the uses of the drugs in third generation ?
1- typhoid
2- bacterial meningitis
What is the most active cephalosporins
against penicillin-resistant pneumococci ?
Cefotaxime and ceftriaxone
Ceftazidime can ?
pass BBB
What isnthe drugs is the treatment
of choice of pseudomonas infections ?
Ceftazidime + aminoglycoside
What is the drugs in the fourth generation ?
1- cefepime
2- cefpirome
What is the drug in the fifth generation?
Ceftobiprole
What is the adverse effect of cephalosporin ?
1- Irritation
2- Nephrotoxicity
3- Thrombocytopenia
4- Disulfiram like action
Ceftriaxone and cefoperazone (3rd gen.) are secreted in the ?
bile
What is the drug of Monobactams ?
Azteronam
What is the drugs of Carbapenems ?
Imipenem, Meropenem
Imipenem is compounded with cilastatin to protect it from ?
metabolism by renal dehydropeptidase.
What is the pk of vancomycin?
1- poorly absorbed from the intestinal tract
2- treatment of C.difficile
3- ( 1 hour intravenous infusion)
4- cerebrospinal fliud
What isnthe adverse effects of Vancomycin ?
1- Ototoxic
2- Nephrotoxic
3- Red man syndrome (most common).
Red man syndrome is the adverse effects of ?
Vancomycin
Bacetracin is Used in ?
Staph aureus skin infections (Topical)
Cycloserine is Used in ?
T.B.(second line)
Fosfomycin is used in ?
treatment of urinary tract infection(safe in pregnancy)