Antibiotics

Question 1

Side effect of minocycline

Answer 1

Vertigo

Question 2

Tetracyclines

Answer 2

Bacteriostatic
Gm - & +
Doxycycline: STIs, rosacea, acne, resp tract infections, malaria prophylaxis
Minocycline: acne vulgaris, non-gonococcal urethritis, syphilis,
Tetracycline: adjunct in severe acne, rosacea
Avoid w/in 4 hrs of antacid

Question 3

Macrolides

Answer 3

Bacteriostatic (bactericidal w/ high concentrations)
Erythromycin BID to QID: gastroparesis
Azithromycin (Z-Pak): STIs,
Clarithromycin BID:

Question 4

Beta-lactams

Answer 4

Bactericidal
Oral cephalosporins are used extensively in primary care
Ceftriaxone (Rocephin): most commonly used parenteral cephalosporin in primary care

1st gen - Cephalexin: skin (not caused my MRSA), impetigo
Pregnancy - UTI (if sensitive)
2nd gen - Cefuroxime: ENT - rhinosinusitis, otitis media
Lungs - CAP, exacerbation of chronic bronchitis
3rd gen - Ceftriaxone (Rocephin) IM, cefixime: STDs: Gonorrhea, PID
Renal: pyelonephritis

Question 5

How is amoxicillin-associated candida vaginitis treated?

Answer 5

Probiotic capsules or yogourt daily
Miconazole

Question 6

Quinolones

Answer 6

Bactericidal