An official website of the United States government Here’s how you know

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

On Oct. 1, 2024, the FDA began implementing a reorganization impacting many parts of the agency. We are in the process of updating FDA.gov content to reflect these changes.

In this section: Development Resources

Rifampin - Oral, Injection products

Exceptions or additions to the recognized standards

For the bacteria listed below, susceptibility test interpretive criteria are not recognized at this time:

Staphylococcus spp.

Enterococcus spp.

Haemophilus influenzae and Haemophilus parainfluenzae

Streptococcus pneumoniae

HACEK group: Haemophilus spp., Aggregatibacter spp., Cardiobacterium hominis, Eikenella corrodens and Kingella spp.

Moraxella catarrhalis

Top