Xifaxan (rifaximin)

Filled with a prescription and delivered free to your door, with help on prior authorization.

Xifaxan is an antibiotic (a rifamycin). It blocks an enzyme bacteria need to make proteins, which stops them from growing. Very little of it passes from the gut into the blood.

MedRx Infusion can fill Xifaxan with a prescription and deliver it free to your door.

What Xifaxan is prescribed for

Travelers' diarrhea: adults and children 12 years and older with travelers' diarrhea caused by certain E. coli bacteria (noninvasive strains). It should not be used for diarrhea with fever or blood in the stool, or diarrhea caused by other germs.
Hepatic encephalopathy (HE): adults, to lower the chance that overt HE (confusion and other brain problems caused by severe liver disease) comes back.
Irritable bowel syndrome with diarrhea (IBS-D): adults with IBS-D (a gut condition that causes belly pain and loose, frequent stools).

A prescription is required. Your prescriber decides whether Xifaxan is right for you.

How Xifaxan is given

Taken by mouth. We ship it to your door.

Storage: Store the tablets at room temperature (68°F to 77°F).

Before you start

Before the first dose, your prescriber may ask for:

for travelers' diarrhea, a check for fever or blood in the stool

Read the Medication Guide and the full Xifaxan prescribing information, and ask your prescriber or our pharmacists about side effects. Our pharmacists are on call 24 hours a day.

Insurance and prior authorization

Health plans often require prior authorization for Xifaxan. Our intake team checks your coverage and works with your prescriber’s office on the paperwork before your first delivery.

The manufacturer runs a support program, XIFAXAN Instant Copay Savings Card, that may help eligible patients with costs and access.

How to refer a patient

Offices can call (844) 671-2600 or fax a referral to (844) 671-2601. Use the Gastroenterology Referral Form (PDF).

The manufacturer also publishes XIFAXAN access and savings resources for prescribers, with prior authorization and medical necessity forms.

Questions

01Does MedRx Infusion fill Xifaxan?

Yes. MedRx Infusion can fill Xifaxan with a prescription and deliver it free to your door. Our intake team confirms access and coverage for each patient.

02What is Xifaxan used for?

Xifaxan is approved for travelers' diarrhea, hepatic encephalopathy (HE) and irritable bowel syndrome with diarrhea (IBS-D). Your prescriber decides whether it is right for you.

03Can Xifaxan be given at home?

Yes. Xifaxan is taken by mouth at home, and we ship it to your door.

04Does insurance cover Xifaxan?

Coverage depends on your health plan, and many plans require prior authorization. Our intake team checks your coverage before your first delivery.

See all the medications we fill.