Treatment of community-acquired pneumonia (CAP) is usually empiric, with selected antibiotic regimens directed against some of the most common causative pathogens. Recommended empiric regimens are listed in Table 2; recommended antibiotic dosages for treatment of CAP are listed in Tables 3 and 4. Joint guidelines for treatment of CAP by the American Thoracic Society and the Infectious Diseases Society of America (ATS/IDSA) were updated in 2019.

Most respiratory tract infections are caused by viruses. Bacterial respiratory tract infections are usually treated empirically with antibiotic therapy that targets the most probable causative pathogens. Recommended antibiotic regimens for outpatient treatment of some common respiratory tract infections are listed in Table 1 for adults and Table 2 for children.

Orlynvah (Iterum Therapeutics), an oral fixed-dose combination of the thiopenem antibacterial prodrug sulopenem etzadroxil and the renal tubular transport inhibitor probenecid, has been approved by the FDA for treatment of uncomplicated urinary tract infections (uUTIs) caused by susceptible isolates of Escherichia coli, Klebsiella pneumoniae, or Proteus mirabilis in women who have limited or no alternative oral antibacterial treatment options. It is the first oral penem-containing product to be approved in the US.

This article includes recommendations for management of most sexually transmitted infections (STIs) other than HIV and viral hepatitis. Some of the indications and dosages recommended here have not been approved by the FDA (see Table 1).

The FDA has approved Exblifep (Allecra), a fixed-dose combination of the cephalosporin cefepime and the beta-lactamase inhibitor enmetazobactam, for IV treatment of adults with complicated urinary tract infections (cUTIs), including pyelonephritis, caused by designated susceptible microorganisms (see Spectrum of Activity). Exblifep is the first product that contains enmetazobactam to be approved in the US.

Ceftobiprole medocaril sodium (Zevtera – Innoviva Specialty Therapeutics), a new IV cephalosporin antibacterial drug, has been approved by the FDA for treatment of Staphylococcus aureus bacteremia (SAB), including right-sided infective endocarditis, acute bacterial skin and skin structure infections (ABSSSIs), and community-acquired bacterial pneumonia (CABP) (see Table 1). It is the second cephalosporin with activity against methicillin-resistant S. aureus (MRSA) to be approved in the US; ceftaroline (Teflaro), which was approved for treatment of ABSSSIs and CABP in 2010, was the...

Clostridioides (formerly Clostridium) difficile infection (CDI) is the most common infectious cause of healthcare-associated diarrhea in adults. Guidelines on management of CDI have recently been updated.

The FDA has approved an oral tablet formulation of sodium sulfate, magnesium sulfate, and potassium chloride (Sutab – Braintree) for colon cleansing prior to colonoscopy in adults. A sodium sulfate-based oral solution (Suprep) has been available in the US since 2010. Sutab is the second tablet formulation to be approved for bowel cleansing prior to colonoscopy; a sodium phosphate-based tablet (OsmoPrep) was approved earlier.

Gastroesophageal reflux disease (GERD) is the most common GI condition encountered in the outpatient setting; it affects about 20% of people in the US.

The FDA has approved Suflave (Sebela/Braintree), a low-volume polyethylene glycol (PEG)- and sulfate-based product for cleansing of the colon prior to colonoscopy in adults. Other oral colonoscopy preparations available in the US are listed in Table 2. Suflave is marketed as tasting better than other products.