Many classes of antibiotics can treat
pneumonia. The antibiotic your doctor chooses
typically will be based on:
How severe your pneumonia is.
problems that you have, if any.
What type of bacteria may be causing
your pneumonia. Most cases of bacterial pneumonia in otherwise healthy people
are caused by Streptococcus pneumoniae and
Mycoplasma pneumoniae. Several other bacteria may cause
pneumonia in the very young, older adults, and those who have other
Whether you have a type of bacteria that some medicines
can no longer kill (resistant bacteria).