Penicillins

Question 1

Penicillin G
Procaine Pen G
Benzathine Pen G
Penicillin V

Answer 1

Gram + cocci. Neisseria. Most mouth anaerobes. NOT effective against Gram - aerobes or B-lactamase prod. organisms

Question 2

Nafcillin

Answer 2

Gram + cocci (incl. B-lactamase producers). Some Streptococci. NOT effective against Gram - aerobes.

Question 3

Oxacillin

Answer 3

Gram + cocci (incl. B-lactamase producers). Some Streptococci. NOT effective against Gram - aerobes.

Question 4

Dicloxacillin

Answer 4

Gram + cocci (incl. B-lactamase producers). Some Streptococci. NOT effective against Gram - aerobes.

Question 5

Ampicillin

Answer 5

Some Gram - and Gram + organisms. NOT effective against B-lactamase producing organisms.

Question 6

Amoxicillin (Amoxil)

Answer 6

Some Gram - and Gram + organisms. NOT effective against B-lactamase producing organisms.

Question 7

Amoxicillin and Clavulanate (Augmentin)

Answer 7

Gram - and Gram + and B-lactamase producing organisms.

Question 8

Ticarcillin

Answer 8

Gram - infxns (esp. Pseudomonas) and aminopenicillin-resistant Proteus infxns. LESS effective against Gram + penicillinase producing organisms.