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a semisynthetic penicillin that is highly resistant to inactivation by penicillinase; its sodium salt is used parenterally as an antibacterial.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


A semisynthetic penicillin, C17H20N2O6S, formerly used in the form of its sodium salt to treat infections caused by penicillinase-producing staphylococci.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

Patient discussion about methicillin

Q. My father was hospitalized for pneumonia. The doctors said they are afraid of HA-MRSA. Why is it so scary? My father was hospitalized for pneumonia last week. The doctors wanted to discharge him as quick as possible because they said that they are afraid of Hospital Acquired Methicillin-resistant Staphylococcus aureus (HA-MRSA). Why is it so scary?

A. Hospital Acquired Methicillin-resistant Staphylococcus aureus is a leading cause of sepsis and death due to the fact that are very limited antibiotics that kill it.
Because of this it is the nightmare of doctors.
This bacteria is very durable and is very common in hospitals, and because of it, its always better to be at the hospital the minimum time needed.

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References in periodicals archive ?
A , or Methycillin Resistant Staphylococcus Aureus to give it its proper name, is a bacteria carried on the skin and in the noses of 20% to 30% of the population.