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Penicillins Antibiotics Class Overview
1. Penicillin G (IV) or V (PO)
2. Aminopenicillins - Ampicillin (IV), Amoxicillin (PO)
Aminopenicillins - Ampicillin ... (IV), Amoxicillin ... Methicillin / Nafcillin ... Penicillins #PCN #Ampicillin ... #Nafcillin #Oxacillin
Penicillins - Table of Coverage by Generation

Natural PCN  (1st generation): Benzathine PCN, PCN G 

Aminopenicillins
2nd generation): Amoxicillin ... , Ampicillin ... 3rd generation): Nafcillin
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
Antimicrobials Nafcillin ... , ampicillin, penicillin
Combined Penicillin/Beta-Lactamase Inhibitors - Antibiotics Class Overview
Amoxicillin/Clavulanate (Augmentin) – PO
Ampicillin/Sulbactam (Unasyn) – IV
Piperacillin/Tazobactam (Zosyn) – IV
Ticarcillin/Clavulanate
Class Overview Amoxicillin ... Augmentin) – PO Ampicillin
General Bacterial Antibiogram - Antibiotics and Spectrum of Coverage
Make sure you consult your local antibiogram!
VRE -
- penicillin, amoxicillin ... /ampicillin, amox-clav
IDSA - Antimicrobial Regimens for Acute Bacterial Rhinosinusitis in Children
Initial empirical therapy
 • Amoxicillin-clavulanate (45 mg/kg/day
empirical therapy • Amoxicillin-clavulanate ... initial therapy • Amoxicillin-clavulanate ... hospitalization • Ampicillin
Lung Abscess
Microbiology:
 • Polymicrobial 
 • Anaerobes (most common) 
Clinical: 
 • Indolent symptoms that evolve
antibiotics • Ampicillin-sulbactam
Outpatient Treatment of with Community-Acquired Pneumonia (CAP)
No comorbidities or risk factors for MRSA or Pseudomonas aeruginosa:
aeruginosa: • Amoxicillin ... Combination therapy with amoxicillin
IDSA Recommended Therapy for Infections Following Animal or Human Bites
Animal bite
 • Amoxicillin-clavulanate 
 • Ampicillin-sulbactam
Animal bite • Amoxicillin-clavulanate ... • Ampicillin-sulbactam ... Human bite • Amoxicillin-clavulanate ... • Ampicillin-sulbactam
Intern Pocket Cards - Antibiogram and Susceptibilities
VRE - MRSA - GRAM POSITIVES - GRAM NEGATIVES -
- penicillin, amoxicillin ... /ampicillin, amox-clav