About Dr. David Moskowitz

Dr. Moskowitz is a nephrologist turned genomicist practicing preventive molecular medicine in Hollywood, Florida.   He is the Founder, CEO, and Chief Medical Officer of Genomed.  So far, he has published better patient outcomes for five diseases: acute and chronic kidney failure, emphysema, sickle cell disease, and COVID-19. He is working on a DNA test to predict cancer, differentiation therapy for late stage cancer, and finding dementia genes.

Dr. MosKowitz says that due to the positive and fast results of Quercetin in treating COVID patients Dr. Moskowitz says that quercetin’s dramatic effect in his own hundred patients “and the molecule’s safety, low cost, and ready availability (it can be purchased without a prescription for 25 cents a capsule) all demand that it be used immediately to end the pandemic. Since it blocks the patient’s mast cells, rather than on the virus, it should work on any viral strain. This is especially important now that we know that the current vaccine doesn’t keep patients from catching and spreading the Delta and Omicron strains.”

First Successful Treatment with Quercetin

In late March, 2020, an 18 year old white male with asthma since age 4 had a cough, sore throat, and fever which worsened despite high dose steroid pills. He developed chest burning with each breath, and thought he was going to die. This was clearly not his typical asthma attack but resembled COVID19 which was common in the community then.

On April 20, 2020, his parents tried to take him to an emergency room, where he was denied admission since his oxygen saturation was still above 90%.  That afternoon, the patient took Quercetin for the first time. The next morning he took his second dose of 1 gram. By noon he was almost back to normal. The following morning, he felt completely normal.  The transformation from near-death to baseline was dramatic and rapid.  Dr. Moskowitz likened it to the discovery of Penicillin

I asked the Doctor about this first case.

We were in touch by phone daily during the week but not over the weekend.  On Monday, I checked in with him, and he told me what had happened over the weekend.  On Saturday he felt OK, but on Sunday his mother had split his Prednisone dose in half (60 mg in the morning, 60 mg in the evening).  Sunday evening he had the chest burning, and his mother took him to the ER.  His O2 saturation was above 90% so he wasn’t admitted to the hospital.  His Quercetin (in oil) had finally arrived Sunday afternoon and he took his first dose (1 G) that evening.  The next morning, he woke up and took his second dose (1 G).   I spoke to him later that morning, and he told me he felt remarkably better.   The next morning, he felt completely back to normal.

I slowly tapered him off Quercetin while I was also tapering him off the Prednisone.  I kept him on Quercetin for a total of a month.  He never experienced shortness of breath or chest burning again.

I asked the Doctor if the patient had COVID.

He didn’t have asthma.  He had all the symptoms of COVID (chest burning with each breath, lack of response to Prednisone).  His symptoms occurred in March and April, 2020 when there was a COVID epidemic.  He never tested positive, but the tests are known to be inaccurate, especially in the young.  He was cured quickly by Quercetin, which has cured other patients with PCR-proven COVID.  I now use the response to Quercetin as empirical proof that the patient had COVID.  I admit the reasoning is circular, but since when have you seen a harmless food additive cure a lethal disease? So, yes, I believe he had COVID.

Dr. Moskowitz and others published a case report of their successful treatment with Quercetin and discussed the underlying medical theory:   “When this patient worsened despite high dose Prednisone, which had managed his asthma before, quercetin was chosen because it is a high affinity (micromolar) inhibitor of the MRGPRX2 receptor.” 

Dr. Moskowitz has tweeted about his dramatic discovery over a thousand times since then.

How Case Reports are Supposed to Work

I asked Dr. Moscowitz about how case reports are supposed to work and how the medical community should have reacted to his COVID/Quercetin case report in the Spring of 2020.

This is a very important discussion. Randomized controlled trials (RCT’s) became the gold standard in drug trials by the 2nd half of the 20th century. Until then, case reports and small case series (6-12 patients) were considered worthwhile evidence. The New England Journal of Medicine famously stopped printing case reports in the 1980s. But the Annals of Internal Medicine, the other premier journal for internal medicine, just announced a journal of case reports.

Case reports are especially useful for clinicians facing a hopeless disease. Unlike RCT’s, which can cost tens of millions of dollars, a case report is free. It’s just a write-up of how a patient did. It can be excerpted from the patient’s notes.

What’s interesting in this debate is nobody considers the surgical literature, which never engages in RCT’s. Surgeons only publish consecutive case series. Coronary artery bypass grafts, coronary artery angioplasty and stents are all based on consecutive case series.

Continuing Case Reports of COVID/Quercetin

Dr. MoskowDr. Moskowitz recently tweeted that he has successfully treated up to 200 patients with Quercetin.  All the patients were Medicare patients over the age of 65 –  “at high risk of death (20%). Only two succumbed to COVID- one 93, and one 67. The 67 year-old did not increase his dosage of Quercetin as Dr. Moskowitz recommended.  “The 93 year-old died in 12 hours and likely could not have been saved.”

Media and Medical Censorship of Dr. Moskowitz

In this age of media and medical censorship, Dr. Moskowitz’s discovery has not been widely reported let alone accepted in the medical community. 

Social media has censored him.  LinkedIn removed him from their platform in September 2020.  Facebook blocks him when he tries to speak about COVID and would not let him purchase an ad promoting Quercetin.  Even his former Harvard Medical School classmates, class of 1980, banned him from class discussions for daring to say that the mass vaccination strategy is wrong and that safe, effective treatments like Quercetin make more sense.  Now he tries to spread the word on Twitter.  I asked him about this.

I expected the mainstream media (MSM) to publicize my work, and for fellow clinicians caring for COVID19 patients to try to duplicate it. What happened was the MSM ignored my work completely, so nobody ever heard about it.

This had happened once before, when I discovered how to make the world dialysis-free. Dialysis is a $200B/YR industry, and the MSM’s lack of interest (as well as Healthcare’s total lack of interest) struck me as financially self-serving. I describe it here:

Renal replacement therapy: summary of NICE guidance


I likewise think MSM’s silence about Quercetin merely reflects their complicity in selling vaccines. Fauci has single-handedly created a multi-trillion dollar industry without end, no small feat.

How to Use Quercetin

Quercetin is available from multiple retailers on eBay. “At the first signs of a cold–runny nose, nasal congestion, sore throat, fatigue, fever–take it immediately.”

Dr. Moskowitz generally treats his patients with one half to one gram of Quercetin twice per day with food, for a total dosage of 1 to 2 grams per day.   The amount varies on how your body reacts to both the virus and to Quercetin.  He has gone up to 3 grams twice per day in some individuals.  Please contact the doctor if you have any questions about side effects or how to use Quercetin. 

How does Quercetin work against COVID?

SARS2 virus triggers mast cells to release histamines, cytokines and other compounds to fight the virus as part of our body’s innate immune response.  When the body overreacts and produces too many of these compounds, it causes a “cytokine storm” which leads to the Sudden Acute Respiratory Syndrome (SARS). 

Mast cells are “A type of white blood cell that is found in connective tissues all through the body, especially under the skin, near blood vessels and lymph vessels, in nerves, and in the lungs and intestines.”   

Dr. Moskowitz describes Quercetin as a “mast cell stabilizer.”  Specifically, it “blocks the mast cell from reacting to the viral nucleocapsid, a basic secretagogue” by blocking the MRGPRX2 receptor on the mast cell.  If you would like to know more about the medical theory, please contact the doctor.

I asked the doctor if Quercetin treated the symptoms of COVID like the cytokine storm, or if it did something else.

Just the symptoms. Remember, a patient can be asymptomatic and still shed the virus for 3 weeks. What matters is losing the symptoms, not the virus.

Randomized Control Study of Quercetin Results

A randomized control study published June 8, 2021 in the International Journal of General Medicine reported that Quercetin was safe and effective COVID treatment. 

This study took 152 patients who were COVID-positive and had typical symptoms associated with COVID such as fever and dry cough and divided the 152 patients into two groups of 76.  One group was given “Standard of Care” treatments according to hospital guideline, which were analgesics/anti-fevers, oral steroids, and antibiotics.  The second group was given the same as the first group plus 500 mg of Quercetin Photosome twice per day. The group that took Quercetin Photosome had reduced rates of frequency and length of hospitalization, need of oxygen therapy, intensive care requirements, and death compared to the control group.  

What is Quercetin?

On a molecular level today, “Quercetin” is a flavonol, a yellow pigment that occurs naturally in large numbers of plants. Dr. Moskowitz:  ”Plants color their flowers yellow to attract bees, since bees can’t see red. Yellow is required for pollination.” Historic London:  “in the black-eyed Susan (Rudbechia hirta) there is an ultraviolet-absorbing region caused by the presence of flavonols, a class of chemical pigments (Thompson et al., 1972). Flavonol-containing flowers are usually yellow in the visible spectrum, a tendency perhaps due to the fact that many flavonol pigments found in petals both absorb ultraviolet light and reflect yellow light.” Interesting.

The word “Quercetin” is Latin. I believe the the word simply means “in Oak.” (“Quercus” (Oak) + “in” (in still means in)). References I’ve looked at on the origin of the word however suggest that the term means “in an Oak Grove.” “1855–60; <New Latin quercēt(um) an oak grove (Latin querc(us) oak (see quercine) + -ētum suffix of places where a given plant grows.” The Latin origins of the word suggest to me that extracts of Quercus bark may have been consumed for medicinal purposes for many ages.

Below is a picture of Quercus robur, the English Oak. According to Dr. Hauschka, “The name Quercus goes back to Roman times. Robur means strength and refers amongst other things to the hard wood of this old tree but also to its inner strength which it passes on to human beings.” This is a strength you could likely consume in some sort of tea or brew. I have found no information on whether oak bark was specifically used for consumption or medicine, but Celts would have consumed oak compounds via oak barrels since at least 300 BC.

Quercus Robur: https://www.flickr.com/photos/silesianbromba/281587468

Western diets already contain 20-50 mg per day of Quercetin.  Some of the highest concentrations show up in the following plants: Capparis spinosa (Capers): 173. Red Onions: 32. Common Onion (Allium cepa): 21. Blackberry juice concentrate: 22. Elderberry juice concentrate: 109. Juniper berries: 47. Radish leaves: 70. Cilantro: 53. Chili peppers: 15. (Numbers are milligrams of Quercetin per 100 grams of plant material). The list of plants that contain Quercetin and their amounts is available at the USDA Database for the Flavonoid Content of Selected Foods if you want to check any specific plants.

I am going to add Quercetin to my medicine cabinet and also elderberry.

If you would like to contact Dr. Moskowitz, he requests that you contact him on his Twitter page @dwmoskowitz or click on “Contact Us” at GenoMed.com. “People interested in knowing their risk of breast, colon, lung, ovary, pancreas, and/or prostate cancers are welcome to submit their whole genomic sequence (WGS) to http://GenoMed.com Just click on “Contact Us” for more details.”

Special thanks to Dr. Moskowitz,



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