Immunoglobulin Therapy (IVIG, SCIG & FSCIG)
Primary immunodeficiency (PI), also referred to as congenital immunodeficiency, encompasses a group of rare, inherited disorders that impair the immune system’s ability to defend the body against infections. These conditions are typically caused by genetic mutations that affect specific components of the immune system.
With over 80 recognized primary immunodeficiency syndromes, these disorders are categorized based on the part of the immune system that is affected, such as lymphocytes, granulocytes, or other immune system components.
Causes of Primary Immunodeficiency
Primary immunodeficiencies are generally hereditary, meaning they are passed down through families. They may follow different inheritance patterns, including:
- Autosomal Recessive Inheritance: Both parents must carry and pass on a copy of the mutated gene for their child to be affected.
- X-Linked Inheritance: The defective gene is located on the X chromosome, often affecting males more severely since they have only one X chromosome.
How Immunoglobulin Deficiency Can Affect the Body
Immunoglobulin (Ig) therapy may be delivered as IVIG (intravenous), SCIG (subcutaneous), or FSCIG (facilitated subcutaneous), depending on your condition, lifestyle, and provider recommendation.
These therapies use antibodies derived from human plasma to support the immune system and help manage a range of immune, neurological, and autoimmune conditions.
Because Ig therapy requires precise dosing, temperature-controlled handling, and coordinated scheduling, working with an experienced specialty pharmacy matters.
At Pharma Fusion RX, we specialize in IVIG and SCIG therapy at home, including first doses, for comfort, safety, and convenience.
Through Specialty Intelligence™, we anticipate needs, prevent delays, and simplify every step of your treatment journey.
Conditions We Support with Immunoglobulin
Primary Immunodeficiency (PID)
- IVIG, SCIG, or FSCIG therapy coordination
- Ongoing immune support and monitoring
Secondary Immunodeficiency
- Therapy related to underlying disease or treatment
Neurological Conditions
- Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)
- Multifocal Motor Neuropathy (MMN)
- Myasthenia Gravis
- Dermatomyositis
- Guillain-Barré Syndrome (GBS)
Autoimmune & Inflammatory Conditions
- Dermatomyositis
- Immune Thrombocytopenia (ITP)
- Pediatric Kawasaki Disease
- Therapy coordination and provider communication
- Monitoring and refill management
Emergency Preparedness
We help maintain personalized infusion plans and ensure continuity of care during travel or unexpected interruptions.
Personalized Care for Immunoglobulin Therapy
What you can expect from Pharma Fusion
Personalized support
A dedicated care team experienced in IVIG, SCIG, and FSCIG who stays connected with you and your provider throughout your entire therapy journey..
Coverage navigation
Assistance with prior authorizations, benefit verification, copay programs, and foundation support, so therapy is never delayed by paperwork.
Reliable home delivery
Temperature-controlled shipment with proactive refill reminders and real-time tracking delivered directly to your door.
24/7 access
Around-the-clock pharmacist support for infusion questions or urgent concerns.
Education and follow-up
Clear guidance about administration, therapy transitions, and what to expect at every stage of treatment.
Nursing coordination
Specialty Intelligence™ turns real-world data into meaningful care, helping prevent interruptions and support long-term outcomes.
24/7 clinical support
Access to pharmacists for urgent questions or support, anytime.

Our goal is to deliver intelligent, compassionate, and highly coordinated specialty care for every patient receiving immunoglobulin therapy. We coordinate closely with your provider to support safe, consistent therapy.
Areas We Service
Experience Specialty Intelligence™ with a Human Touch
Discover care that’s more personal, more responsive, and more human.
At Pharma Fusion, we merge advanced data, clinical expertise, and genuine compassion to simplify therapy, resolve challenges others can’t, and deliver outcomes that truly make a difference.
Let’s stay connected!
Pharma Fusion Rx is ACHC Accredited and operates in full compliance with all federal and state pharmacy regulations.
Pharma Fusion is committed to protecting patient privacy and complies with all HIPAA privacy and security regulations.
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