Diplomat Specialty Pharmacy® and Diplomat Specialty Infusion Group® are joining the Optum® family.

To learn more about what this means for you, visit our FAQ pages:

Specialty Pharmacy FAQ  •  Infusion Pharmacy FAQ

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Simplifying Therapy for XLP

Diplomat supports patients throughout treatment.

X-linked lymphoproliferative disease (XLP) affects the immune system, causing it not to work the way it should. It’s a genetic condition that’s carried on the X chromosome. Because males only have one X chromosome, they can get XLP. Females can be carriers of XLP, but they don’t get it themselves.


Most people who have XLP won’t normally have any symptoms. It starts to cause issues when the person also gets infected with Epstein-Barr virus (EBV), a common virus that will affect most people in their lifetimes.


When someone with XLP gets EBV, their body responds by creating far too many immune cells. This can trigger a condition called hemophagocytic lymphohistiocytosis (HLH), which can put patients at risk of getting hepatitis and lymphoma. It can even be fatal.


XLP is very rare. Only about one in every million males has it. Although it’s a genetic condition, it might not be diagnosed until well into childhood.


For drug information, click here.

Prescriber? Find enrollment forms here.

How can Diplomat help me?

We’ll answer your questions about Diplomat Specialty Infusion Group.


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Upcoming Treatments

We keep you informed about new specialty medications.

Diplomat actively monitors specialty medications in the government's review and approval process. You can search our database to see if there will be new treatment options for your condition you can discuss with your doctor.

Search Our Database.

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Financial Assistance

We’ll look for ways to help you afford therapy.

There are many ways to get help paying for specialty medications. We'll seek third-party programs and support the application process from start to finish.

Learn More

Meet our patients.

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When therapy was approved to treat Jodie’s hypokalemic periodic paralysis, Diplomat was there to help.

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After being diagnosed with multiple sclerosis, Bethany retired. Diplomat helped her adjust to a new normal.

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After living with Crohn's disease for 18 years, Dave needed nutritional support. Diplomat helped him thrive.

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Jacque thought she’d live with hepatitis C forever. But with Diplomat’s help and expertise, she found a cure.

Read more

Still have questions?

Get the answers you need.