Antibiotics for MRSA Infections

February 2, 2021

Methicillin-resistant Staphylococcus aureus is a strain of bacteria responsible for numerous infections. Methicillin belongs to the group of penicillins. S. aureus is responsible for infections of the:

  • Blood (sepsis)
  • Skin (superficial or deep layers, also known as cellulitis)
  • Lungs (pneumonia)
  • Surgical sites
  • Heart
  • Bones
  • Joints

When MRSA strikes, it is diagnosed by laboratory testing. Or it is assumed by the doctor based on risk factors or previous MRSA infections. Sometimes a specimen is taken from the site of infection and the bacteria is grown in culture. When the culture is exposed to methicillin, if it does not die, then it is proven to be resistant to penicillins.

Most Common Oral Antibiotics Used for MRSA Infections

  • Cleocin HCl (clindamycin) can be taken orally in a dose of 150 to 450 mg every 6 hours, depending upon the seriousness of the infection. For worse infections injectable medication is given.
  • Bactrim (trimethoprim/sulfamethoxazole) is recommended to be taken orally in a dosage of 160/800 mg twice a day for 7 to 14 days.
  • Doxycycline usually one tablet of 100 mg is taken twice a day for 7-14 days.

Even against these antibiotics there are developing resistances and in these cases IV, antibiotics may be needed.

Did you know? QuickMD can treat your MRSA infection in the comfort and convenience of your own home. Our doctors can prescribe you antibiotics online to treat your MRSA infection.