Eddiel Shared "AntiBiotics" - 26 Picmonics
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AntiBiotics
Cephalosporins Overview
- Mechanism of Action
- Beta lactam drug
- Inhibits cell wall synthesis
- Bactericidal
- Side Effects
- Hypersensitivity reactions
- Vitamin K Deficiency
- Disulfiram like reaction with Alcohol
- Increased Nephrotoxicity of Aminoglycosides
1 min
1st Generation Cephalosporin
- Drug Names
- Cefazolin
- Cephalexin
- Indications (PEcK Mnemonic)
- Proteus mirabilis
- E. coli
- Klebsiella
- Gram-Positive Cocci
1 min
2nd Generation Cephalosporin
- Drug Names
- Cefoxitin
- Cefaclor
- Cefuroxime
- Indications (PEcK HENS Mnemonic)
- Proteus mirabilis
- E. coli
- Klebsiella
- Gram-Positive Cocci
- Haemophilus influenzae
- Enterobacter
- Neisseria
- Serratia marcescens
2 mins
3rd Generation Cephalosporin
- Drug Names
- Cefotaxime
- Ceftriaxone
- Cefdinir
- Ceftazidime
- Pseudomonas
- Indications
- Serious Gram-Negative Bacteria Resistant to Other Beta-Lactams
1 min
4th Generation Cephalosporin
- Drug Name
- Cefepime
- Indications
- Increased Activity Against Gram-Positive Infections and Pseudomonas
29 secs
Penicillin
- Gram Positive
- Spirochetes
- Bind PBPs
- Block Transpeptidase Cross-linking of Cell Wall
- Activate Autolytic Enzymes
- Bactericidal
- Hypersensitivity Reactions
- Hemolytic Anemia
- Beta-lactamase Sensitive
2 mins
Ampicillin and Amoxicillin
- Mechanism
- Aminopenicillin
- Broad Spectrum Penicillin
- Indications
- Gram-Positive and Some Gram-Negative Infections
- Side Effects
- Rash
- Diarrhea
- Considerations
- No Effect Against Staph Aureus
- Often combined with Beta Lactamase Inhibitor
- Allergic Reaction
2 mins
Beta-Lactamase Inhibitors
- Considerations
- Often Combined with Penicillin Antibiotics
- Drug Names
- Clavulanic Acid
- Sulbactam
- Tazobactam
51 secs
Vancomycin Mechanism
- Bacteriostatic and Bactericidal
- Gram-Positive
- Inhibits Cell Wall Mucopeptide
- Binds to D-ala D-ala
- Resistance with Change to D-ala D-lac
- Staphylococcus aureus
- Orally for Clostridium difficile
- Enterococci
2 mins
Vancomycin Side Effects & Toxicity
- Side Effects
- Thrombophlebitis
- Nephrotoxicity
- Ototoxicity
- Diffuse Flushing Called Red Man Syndrome
- Prevent with Antihistamine
- Prevent with Slow Infusion
2 mins
Metronidazole
- Mechanism of Action
- Bactericidal
- Forms Free Radical Toxic Metabolites
- Damages DNA
- Indications
- Giardia lamblia
- Entamoeba Histolytica
- Trichomonas
- Gardnerella
- Anaerobes
- Side Effects
- Metallic taste
- Disulfiram like Reaction with Alcohol
2 mins
Aztreonam
- Monobactam
- Resistant to beta lactamases
- Binds to penicillin binding protein (PBP)
- Inhibit cell wall synthesis
- No Activity on Gram-Positives or Anaerobes
- Gram-Negative Rods
- Non allergenic to penicillin
- Synergistic with aminoglycosides
2 mins
Imipenem
- Mechanism
- Resistant to Beta-Lactamases
- Broad Spectrum
- Indications
- Anaerobes
- Gram-Negative Rods
- Gram-Positive Cocci
- Must Administer with Cilastatin
- Cilastatin is Inhibitor of Renal Dehydropeptidase I
- Side Effects
- Diarrhea
- Skin Rash
- Seizures
- Considerations
- Meropenem
- Stable to Dehydropeptidase I
- Reduced Risk of Seizures (Non-Seizure Causing)
2 mins
Aminoglycosides
- Drug Names
- Gentamicin
- Neomycin for Bowel Surgery Prep
- Amikacin
- Tobramycin
- Streptomycin
- Mechanism of Action
- Bactericidal
- Inhibit Formation of Initiation Complex
- Cause Misreading of mRNA
- Require O2 for Uptake
- Resistance
- Resistance by Transferase Enzymes
- Acetylation
- Phosphorylation
- Adenylation
- Indications
- Gram-Negative Rod Infections
- Synergistic with B-Lactam Antibiotics
- Side Effects
- Nephrotoxicity Especially When Used with Cephalosporins
- Ototoxicity Especially When Used with Loop Diuretics
- Teratogen
5 mins
Protein Synthesis Inhibitors
- Drug Names
- 30S inhibitors
- Aminoglycosides
- Tetracyclines
- 50S inhibitors
- Chloramphenicol
- Clindamycin
- Erythromycin
- Lincomycin
- Linezolid
3 mins
Tetracycline Drug Names and Indications
- Drug Names
- Demeclocycline
- Minocycline
- Doxycycline
- Fecally Eliminated
- Can be Used in Renal Failure
- Indications
- Antidiuretic Hormone Antagonist
- Chlamydia
- Rickettsia
- Borrelia burgdorferi
- Helicobacter Pylori
- Mycoplasma Pneumonia
3 mins
Tetracycline Mechanism
- Binds to 30 S to Prevent Attachment of Aminoacyl tRNA
- Limited CNS Penetration
- Divalent Cations Inhibit Absorption
- Must Not Take with Milk, Antacids, Iron
1 min
Tetracycline Toxicities
- Inhibition of Bone Growth in Children
- Teratogen
- Discoloration of Teeth
- Photosensitivity
- GI Distress
2 mins
Stretptogramin
- Example
- Quinupristin/Dalfopristin
- Synthesized by strep. virginiae
- Bind to 23S rRNA of 50S subunit
- Cytochrome P450 inhibitor
Clindamycin
- Mechanism of Action
- Bacteriostatic
- Binds 50S Ribosomal Subunit
- Blocks Translocation
- Indications
- Anaerobic Infections above the Diaphragm
- Aspiration Pneumonia
- Lung Abscess
- Side Effects
- Can Cause Pseudomembranous Colitis
1 min
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