IVIG (Intravenous Immunoglobulin) Therapy For Long COVID
IVIG (Intravenous Immunoglobulin) delivers concentrated antibodies to modulate immune function, calm neuroinflammation, and support nerve repair in Long COVID patients. Dr. Groysman offers IVIG therapy for carefully selected patients with immune dysregulation, small fiber neuropathy, POTS, or autoimmune features not responding to conservative treatment. Treatment involves infusions every 2-4 weeks, with most patients seeing benefit after 2-3 cycles. Insurance coverage varies significantly.
Intravenous Immunoglobulin (IVIG) for Immune Dysregulation, Neuropathy, and Autonomic Dysfunction
IVIG is a specialized infusion therapy delivering concentrated antibodies directly to your bloodstream for modulating immune function, calming neuroinflammation, and supporting nerve repair. At our clinic in Plano, Texas, IVIG is offered to patients whose symptom profile suggests immune dysregulation, autoimmune activity, neuropathy, or complex inflammation.
IVIG is not a universal treatment for Long COVID. However, for patients with specific immune or neurological patterns, it can help restore immune balance, reduce autoantibody activity, and support the body’s recovery processes.
Dr. Groysman is one of the few physicians in the Dallas–Fort Worth area offering comprehensive IVIG therapy for Long COVID-related immune and neurological complications, with careful patient selection and monitoring protocols.
Meet Immune Dysregulation in Long COVID
In many Long COVID patients, the immune system doesn’t return to normal after the acute infection clears. Instead, it can remain in a state of persistent activation or become misdirected and attack the body’s own tissues.
Immune dysregulation can manifest as:
- Chronic inflammation that doesn’t resolve and keeps the body in a constant state of immune activation
- Immune exhaustion, where certain immune functions become impaired while others remain overactive
- Neuroinflammation, causing ongoing inflammation in peripheral nerves, the autonomic nervous system, or the central nervous system
These patterns can drive a wide range of symptoms including:
- Persistent neurological symptoms (brain fog, headaches, tremors)
- Recurrent infections or chronic inflammatory symptoms
- Exercise intolerance and post-exertional crashes
- Small fiber neuropathy (burning pain, numbness, sensitivity to temperature)
- Dysautonomia and POTS (dizziness, heart rate problems, blood pressure instability)
The challenge is that standard blood tests often appear “normal,” even when these immune problems are actively causing debilitating symptoms. This is where targeted testing becomes crucial and where IVIG may play a therapeutic role.
What Is IVIG?
Intravenous Immunoglobulin (IVIG) is a purified preparation of immunoglobulin G (IgG) antibodies derived from the pooled plasma of thousands of healthy donors. Each batch represents antibodies from 10,000 to 60,000 donors, providing a diverse collection of antibodies that have encountered countless pathogens and antigens.
Think of IVIG as borrowing the immune wisdom of thousands of people to help rebalance your own immune system.
How It’s Made
- Plasma is collected from healthy, screened donors
- Antibodies (immunoglobulins) are separated and purified
- The product undergoes viral inactivation steps for safety
- The final product contains primarily IgG antibodies, with small amounts of IgA and IgM depending on the formulation
What Makes IVIG Different from Other Treatments
Unlike medications that simply suppress the immune system or antibiotics that target specific infections, IVIG works by providing your body with a broad spectrum of functional antibodies that can:
- Modulate overactive immune responses
- Neutralize harmful autoantibodies
- Reduce inflammatory signaling
- Support tissue repair processes
- Help restore normal immune balance
IVIG has been used for decades in established autoimmune and neurological conditions such as Guillain-Barré syndrome, CIDP (chronic inflammatory demyelinating polyneuropathy), myasthenia gravis, and immune thrombocytopenia. Its use in Long COVID represents an extension of these principles to post-viral immune dysfunction.
How Does IVIG Work?
The mechanisms behind IVIG to help modulate immune dysfunction are complex, and research has identified several key actions:
1. Immune Modulation
IVIG helps recalibrate an overactive or misdirected immune system. It can reduce excessive inflammatory signaling while supporting beneficial immune functions. This balance is particularly important in post-viral conditions where the immune system may be stuck in a hyperactive state.
2. Antibody Neutralization
In some Long COVID patients, the immune system produces antibodies that mistakenly target the body’s own proteins. These can include:
- Antibodies against autonomic nerve receptors (contributing to POTS and dysautonomia)
- Antibodies against ACE2 receptors
- Antibodies against nerve proteins (contributing to neuropathy)
IVIG may help by binding to and neutralizing these harmful antibodies to reduce their ability to cause damage.
3. Reduction of Neuroinflammation
IVIG has anti-inflammatory effects specifically on the nervous system. It may help reduce inflammation in:
- Small nerve fibers (helping with small fiber neuropathy symptoms)
- Autonomic nerves (potentially improving POTS and dysautonomia)
- Brain tissue (possibly supporting cognitive function)
4. Support for Nerve Repair
By reducing inflammation and modulating immune attack on nerves, IVIG creates conditions that may allow nerve tissue to recover and regenerate. This is particularly relevant for patients with neuropathic symptoms or autonomic dysfunction.
5. Stabilization of Autonomic Function
For patients with dysautonomia or POTS with suspected autoimmune features, IVIG may help stabilize autonomic nervous system function by reducing immune-mediated disruption of autonomic signaling.
Who Should Consider IVIG?
You may be a candidate for IVIG if you experience:
- Small fiber neuropathy with pain, numbness, or temperature sensitivity
- Peripheral neuropathy with weakness, tingling, or sensory changes
- Autonomic neuropathy affecting digestion, bladder function, or sweating
- Tremors or movement disorders that developed after COVID
- Severe persistent headaches not responsive to standard treatments
Autonomic Symptoms
IVIG may be considered if you have:
- Severe POTS (Postural Orthostatic Tachycardia Syndrome) with significant heart rate increases upon standing
- Dysautonomia with blood pressure instability, temperature dysregulation, or digestive problems
- Orthostatic intolerance making it difficult to remain upright
- Suspected autoimmune dysautonomia based on testing or clinical presentation
Immune & Inflammatory Symptoms
You might benefit from IVIG if you experience:
- Recurrent infections suggesting immune deficiency
- Chronic inflammatory symptoms not responding to other treatments
- Evidence of autoantibodies on specialized testing
- Elevated inflammatory markers with clinical correlation to symptoms
- History of response to immunomodulators in the past
Post-Viral Patterns
IVIG may be appropriate if you have:
- Long COVID symptoms primarily involving the nervous or immune systems
- Symptom patterns consistent with CIDP-like neuropathy
- Post-viral autoimmune features documented through testing
- Failure to improve with conservative therapies addressing other mechanisms
Is IVIG Right for You? Take This Quick Assessment
Consider IVIG evaluation if you can answer “yes” to several of these questions:
About Your Diagnosis:
[ ] Do you have confirmed small fiber neuropathy or peripheral neuropathy?
[ ] Have you been diagnosed with POTS or dysautonomia?
[ ] Do you have positive autoantibody testing relevant to your symptoms?
[ ] Have immune deficiency markers been identified in your lab work?
About Your Symptoms:
[ ] Are neuropathic symptoms (pain, numbness) significantly affecting your quality of life?
[ ] Have neurological symptoms been a dominant feature of your Long COVID experience?
[ ] Experience severe autonomic symptoms like blood pressure instability or digestive dysfunction?
Your Treatment History:
[ ] Have you tried immunomodulatory approaches with partial benefit?
[ ] Are your symptoms severe enough to warrant consideration of advanced therapies?
[ ] Have other treatment approaches (lifestyle modifications, supplements, medications) provided insufficient relief?
About Your Testing:
[ ] Have you undergone comprehensive testing for immune or neurological dysfunction?
[ ] Are you willing to undergo additional testing (such as skin biopsy for small fiber neuropathy confirmation) if needed?
If you answered “yes” to multiple questions in more than one category, IVIG may be worth discussing.
Personalized Care with Dr. Groysman
Dr. Groysman takes a comprehensive approach to IVIG therapy for Long COVID patients:
Evaluation: Every patient undergoes detailed assessment to determine if IVIG is appropriate. This includes review of all testing, symptom patterns, previous treatments, and consideration of other underlying mechanisms that may be contributing to symptoms.
Patient Selection: IVIG is not offered to all Long COVID patients, only those whose clinical presentation suggests they are likely to benefit. This targeted approach ensures resources are used appropriately and patients receive treatments most likely to help their specific situation.
Monitoring and Adjustment: Response to IVIG is monitored through:
- Symptom tracking
- Repeat laboratory testing when appropriate
- Assessment of functional improvements
- Adjustment of dosing, frequency, or formulation as needed
Integration with Other Treatments: IVIG is rarely used in isolation. Treatment can include:
- Management of other Long COVID mechanisms (mitochondrial, autonomic, etc.)
- Supportive therapies for symptom management
Lifestyle and pacing strategies - Other medications or supplements as clinically indicated
Patient Success Stories
Severe Fatigue Recovery
“Dr. Groysman, you are amazing and after getting SGB (both sides) and one EAT, I’ve been continually recovering over the past 5 months. I got LC in March, 2020 and had tremendous fatigue, mostly bed bound, which ruined my life. My immune system was non-existant.” – AEB 12/2024
Singer Recovers Voice
UPDATE: My daughter is a singer and worked with her voice coach yesterday for the first time since her SGB and EAT 2 weeks ago. I got this message from her voice coach today: “I’m so excited to see where these treatments take her. Her voice is already coming back to the way it was. I know it’s hard to tell for you guys probably, but when she started with all of this her range dropped, became super airy in her tone, breath support etc. Yesterday there was already so much more tone!” – J.L. 8/2024
39-Month Journey Ends
“Thank you Dr. Robert for being one big step on my son’s recovery. Today he finally back to his normal happy and energetic, can get up at 7 and go to his hobby Robotics club. It was 39 months journey with more than 50 doctors/therapists. The EAT procedures were able to rid of all the focal inflammation , so he was able to further progress to get rid of the POTS PEM and chronic fatigue. Merry Christmas to you and your team , and all people here ! Do not give up , human body are so magic , we should all be able to heal !” – SS 12/2024
Frequently Asked Questions About IVIG
IVIG infusions typically take 2 to 6 hours, depending on the dose prescribed and how well you tolerate the infusion. We start slowly to monitor for any reactions, then increase the rate as tolerated. Your first infusion may take longer as we establish your individual tolerance.
Common side effects may include:
- Headache (the most frequent complaint)
- Fatigue on infusion day and the day after
- Muscle aches or body aches
- Low-grade fever
- Nausea
- Temporary worsening of symptoms before improvement
These side effects are usually mild and manageable. Slowing the infusion rate, ensuring good hydration, and using pre-medications can reduce side effects significantly.
Rare but serious complications include aseptic meningitis, allergic reactions (especially in patients with anti-IgA antibodies), kidney stress, blood clots, and hemolysis. We assess your individual risk factors and monitor appropriately.
IVIG may not be appropriate if you:
- Have severe kidney disease (some formulations pose kidney risk)
- Have a history of blood clots without appropriate management
- Have IgA deficiency with documented anti-IgA antibodies (without access to low-IgA products)
- Have heart failure or fluid overload concerns
- Have had severe allergic reactions to blood products
- Do not have a clear clinical indication suggesting immune dysregulation or autoimmune features
Additionally, IVIG is typically not considered first-line for Long COVID patients whose symptoms are primarily driven by mechanisms other than immune dysfunction (such as purely mitochondrial or vascular issues without neurological involvement).
Response timelines vary considerably:
- Early responders may notice subtle improvements after 1-2 infusions
- Typical responders see more significant benefit after 2-3 cycles (4-12 weeks)
- Delayed responders may require 3-6 months of treatment before meaningful improvement
- Non-responders become apparent when no benefit is seen after 3-4 cycles
We reassess response periodically and adjust the plan if you’re not seeing benefit within a reasonable timeframe. IVIG is not appropriate for indefinite use without demonstrated clinical improvement.
Some patients can taper and discontinue IVIG after achieving significant improvement, while others require ongoing maintenance therapy to sustain benefits. The decision depends on:
- Degree of improvement achieved
- Symptom stability off treatment
- Underlying diagnosis and disease activity
- Practical considerations (cost, access, tolerance)
We develop individualized tapering plans when appropriate, gradually increasing intervals between infusions while monitoring for symptom recurrence. Some patients can successfully discontinue, while others find they need periodic “maintenance” infusions.
Most patients undergo infusions every 2 to 4 weeks. The total duration of treatment varies significantly based on individual response. Some patients show benefit after a few months and can taper or discontinue, while others require ongoing maintenance therapy. This is determined collaboratively based on your clinical response.
IVIG coverage is diagnosis-dependent. If you believe you case may qualify for coverage contact our office for assistance.
IVIG differs from:
- Immunosuppressants (like prednisone or methotrexate): IVIG modulates rather than suppresses the immune system, aiming for balance rather than reduction
- Plasma exchange (PLEX): PLEX physically removes antibodies from blood; IVIG adds beneficial antibodies
- Monoclonal antibodies: These target specific immune pathways; IVIG provides broad-spectrum immune modulation
- Supplements: IVIG is a medical therapy with established mechanisms for specific conditions; it’s not a nutritional support
The advantage of IVIG is that it can provide immune modulation without the broad immunosuppression that increases infection risk. However, it’s more invasive, more expensive, and carries specific risks that must be weighed against potential benefits.
Related Questions About IVIG
What testing is needed before starting IVIG?
Comprehensive testing typically includes:
- Complete blood count and metabolic panel (kidney and liver function)
- Immunoglobulin levels (IgG, IgA, IgM)
- Anti-IgA antibody testing
- Autoantibody panels relevant to your symptoms (such as autonomic antibodies)
- Small fiber neuropathy confirmation (skin biopsy) if neuropathy is the primary indication
- Other specialized testing based on your clinical presentation
Can IVIG be combined with other Long COVID treatments?
Yes, IVIG is often integrated with other treatment approaches:
- Supplements supporting mitochondrial function, detoxification, or nutritional deficiencies
- Medications for symptom management (beta blockers for POTS, for example)
- Other immune-modulating therapies as clinically appropriate
- Lifestyle interventions (pacing, compression garments, dietary modifications)
The goal is comprehensive treatment addressing multiple mechanisms, not relying on a single intervention.
Is IVIG safe for long-term use?
IVIG has been used for long-term maintenance (years) in established conditions like CIDP and immune deficiency. However, long-term use requires:
- Regular monitoring of kidney function, blood counts, and other safety parameters
- Periodic reassessment of ongoing need
- Awareness of cumulative risks (such as iron overload in some cases)
- Cost-benefit analysis including quality of life improvement
Long-term safety has been well-established in other conditions, but each patient’s situation is unique and must be monitored individually.
What if IVIG doesn’t work for me?
If IVIG does not provide benefit after an adequate trial (typically 3-4 cycles), we reassess:
- Was the diagnosis correct? (Could symptoms be driven by non-immune mechanisms?)
- Are there other immune approaches to consider? (Such as plasma exchange or specific immunosuppressants)
- Should we focus more intensively on other Long COVID mechanisms?
- What alternative treatment pathways might be more beneficial?
Not all patients respond to IVIG, and lack of response provides important diagnostic information that guides subsequent treatment decisions.
Are You A Potential Candidate for IVIG? Take The Next Step
If you’re struggling with Long COVID symptoms suggesting immune dysregulation, neuropathy, or autonomic dysfunction, a comprehensive evaluation can help determine whether IVIG therapy is appropriate for your specific situation.
Dr. Groysman provides thorough assessment, careful patient selection, and individualized treatment protocols for Long COVID patients who may benefit from IVIG.
Schedule a consultation to discuss whether IVIG therapy is right for you.
Disclaimer: This information is for educational purposes and does not constitute medical advice. IVIG therapy carries risks and is not appropriate for all patients. Treatment decisions should be made in consultation with a qualified physician who can evaluate your individual circumstances. Not all insurance plans cover IVIG for Long COVID-related indications, and coverage determinations are made by individual insurers. The information provided here reflects current understanding and clinical practice, but medical knowledge evolves continuously.