Ivermectin is safe and effective, Merck’s New Pill is Dangerous

A previous post discussed how Merck debunked its own drug Ivermectin as a Covid fighter to clear the way for a new Merck patent pill costing 40 times the generic Ivermectin.  Now comes a revelation that the PR about the new drug Molnupiravir’s trial being cut short, was not because it was so successful, but because it didn’t work on moderate Covid cases, and is capable of dangerous long-term side effects (which won’t appear for months or years, long after the trial period). See Why Merck Dissed Its Own Invention Ivermectin

Leo Goldstein provides the analytics in his essay Merck Ignores Molnupiravir’s Cytotoxicity,  His report was also referenced at Trial Site News Is Molnupiravir a Global Catastrophic Threat? Excerpts in italics with my bolds.

Overview from Trial Site News:

Merck’s Molnupiravir (also known as EIDD-2801 and MK-4482) is a mutagenic nucleotide analogue [1]. It introduces errors in the SARS-COV-2 RNA at the time of replication after proofreading, and causes lethal mutagenesis [2]. This threatens to accelerate the evolution of the coronavirus.

Any major variant of the coronavirus represents local optimum (in mutations space), maximizing coronavirus’ fitness. One- or two-point mutations cannot accomplish this. A new variant can only rise through the change of the virus-host-conditions systems, or through larger mutations set. Even a moderate increase in the point mutations frequency causes a big increase in the frequency of multi-point mutations and dangerous recombinations. Such events are too rare to be caught in small trials, but inevitable in large populations, and might lead to catastrophic consequences.

The authorization and broad use of Molnupiravir is likely to breed very dangerous SARS-COV-2 variants.

Leo Goldstein:

Merck has just applied to the FDA for an emergency use authorization of Molnupiravir for early treatment of COVID-19. Molnupiravir is a mutagenic nucleotide analogue. It increases the rate of mutations in the coronavirus’ RNA and in human DNA.

The application is based on alleged interim results of an unfinished trial, where this drug was given to 385 patients in 173 sites all over the world, and the patients were then observed for 29 days since recruitment and randomization.

Molnupiravir is mutagenic and toxic for human cells. Merck and Ridgeback Biotherapeutics have flatly denied this and proceeded with human trials. The consequences of Molnupiravir’s DNA mutagenesis, such as cancer or birth defects, take months or years to develop. The 24 days of patient observation after 5 days treatment is obviously not enough to detect anything.

The broad use of Molnupiravir is a global catastrophic risk because the increased rate of coronavirus mutations is likely to create more dangerous variants.

All Molnupiravir trials were conducted by Merck or its partners. No results have been published in peer reviewed journals. Nevertheless, Dr. Fauci gave it a nod of approval. The US government has already purchased 1.7 million “treatment courses” from Merck, and it is on the course to manufacture and ship 10 million of them by the end of 2021. The relevant parties act as if the EUA approval is just a formality and are proceeding as if it were already granted.


Molnupiravir is a mutagenic [2] [3] [4] [5] [6] nucleotide analogue, and its potential cytotoxicity and genotoxicity are not in doubt [7]. Its use for some categories of patients could be justified if benefits were exceeding harm and risk. Instead, Merck elected to deny existence of these risks. Molnupiravir’s metabolites cause mutations in human DNA [4], just like they do in viral RNA. This is not in question. If the rate of mutations at therapeutic doses were sufficiently low, Merck should have shown that. Merck’s researchers dismissed this danger by alleging that they had conducted tests showing an absence of cytotoxicity [8], without showing any data. Their response was rebutted [7 [9] and laughed at by other scientists [9]
The therapeutic dosage — 800 mg, twice daily, for 5 days — is at the upper limit of the investigated range 50 – 800 mg [10], suggesting it is higher than what was initially expected.  Molnupiravir was initially developed to treat Equine Encephalitis virus diseases, and its most valuable property was its ability to cross brain-body barrier and achieve high concentration in the brain and very high concentrations in spleen [11] . Its concentration in the spleen is higher than in lungs [3]
[3]showed that meaningful inhibition of SARS-COV-2 without cytotoxicity is impossible in Vero cells (Fig.1B) . The data for human epithelial cells is inconsistent but does suggest cytotoxicity (Supplementary Materials, the data for Fig. S1).

More Mercky Business

[9] Merck researchers admitted to the necessity of in-vivo mutagenicity studies for this drug before proceeding to human trials. They therefore claimed that such studies (Pig-a and the Big Blue® (cII Locus)) have been conducted and that no danger of mutagenicity was found even at higher doses [12]. This is highly unlikely. Moreover, other scientists argued that these studies had significant limitations and do not allow Merck to make such claims [9]. To make matters worse, Merck failed to publish any data from these studies, making it impossible to peer review or replicate them.

This raises suspicions not only about the toxicity of Molnupiravir, but also about Merck’s conduct before and during clinical trials.

No data about concentrations and effects of Molnupiravir’s metabolites in the most vulnerable tissues, such as bone marrow, can be found.

Dubious Results from Animal Trials

Animal trials also failed to provide evidence of Molnupiravir’s effectiveness, at the manufacturer’s recommended dose – 800 mg (equivalent of 10 mg/kg or 370 mg/m2) twice daily. The mass of the drug per body area of the human or animal is the preferred quick approximation for comparison between human and animal doses [13].

The “Phase 3” Trial

In this trial, Merck gave patients in the treatment group 800 mg x 2/day x 5 days. After observing 775 participants (including 385 in the treatment group) for 24 (= 29-5) days after that, Merck published a press release [17] claiming that the trial was successful.

It is not true. A formally registered clinical trial should be conducted according to the plan until the end to provide statistically valid results. It was registered to enroll, randomize, and observe 1550 participants, and Merck had to spend another month to do that. Its October 1 press-release stated that the recruitment was more than 90% complete at the time it was stopped, between September 5 and September 30.

After 20 months of the pandemic, making decisions one month before completion of the single Phase 3 trial looks fishy.

If we combine this trial with a few dozen patients who received the same dose of Molnupiravir in other trials, there are less than 500 patients in total, who were treated with this drug and observed for 29 days. Should a drug be authorized for tens of millions of people, based on a trial involving less than 500 patients?

This trial was conducted in 173 sites all over the world. Such a wide range of sites cannot be properly controlled. This trial looks like a reality show, in which the organizers control the outcome. Gilead used a similar methodology to push Remdesivir, with deadly results. Merck’s Molnupiravir gambit is even more dangerous, because it can be administered to millions, with catastrophic global risks [18]
Finally, no study plan or protocol of the trial has been published and of course, no results. The only morsels of information to be found on this trial comes from Merck’s press release and ClinicalTrials.gov [16], which does not contain even the protocol ID.

Two Indian companies also started clinical trials for Molnupiravir but decided to stop, apparently because of futility [19], but another Indian company Hetero applied for an EUA in India.  See Aurobindo Pharma, MSN Seek CDSCO Panel Nod To Cease Molnupiravir Trial On Moderate COVID Patients

Conflicts of Interest and Hidden Motives

The conflict of interest is unusually high. Merck has been manufacturing Molnupiravir at risk [17] Payment is conditional on EUA:

“In anticipation of the results from MOVe-OUT, Merck has been producing molnupiravir at risk. Merck expects to produce 10 million courses of treatment by the end of 2021, with more doses expected to be produced in 2022.”

The US and other governments, who ordered Molnupiravir [20], carry an even bigger risk. They have created expectations that would go unfulfilled if Molnupiravir is properly rejected. Such an evident alignment of interests between government bureaucracies and Merck is very dangerous and requires extreme scrutiny.


With the current limited information about Molnupiravir, one might compare its effects, at the “therapeutic dosage”, to a medium dose of radiation. There might be acute sickness, temporary immune-suppression, and long-term consequences including cancer and birth defects. The specific dosage may have been selected to be just below the threshold of acute sickness. We will not know until the results are published.

Footnote: In a separate article, another researcher drew this analogy.  Suppose that your body has four doors by which SARS-CV2 can enter.  Molnupiravir can close one door, while Ivermectin closes them all. There is no reason for this new Merck pill except for obscene profits to be gained.

For Ivermectin Background, see Ivermectin Invictus: The Unsung Covid Victor




  1. jchr12 · October 14, 2021

    Ivermectin is cheap, Merck’s new pill is expensive. Here’s the problem

    Liked by 1 person

  2. jchr12 · October 14, 2021

    Yes, thank you.


  3. Pingback: Ivermectin is safe and effective, Merck’s New Pill is Dangerous – 𝙷𝚘𝚗𝚒𝚊𝚛𝚊𝚂𝚝𝚞𝚏𝚏
  4. thecovidpilot · October 18, 2021

    Too many on “our” side don’t know the importance of timing and immune boosters.

    Supplementing with D3 is dilatory. Half life in blood is short.

    Have you checked out calcifediol? It’s a fast-acting vitamin D analog whose deficiency has been shown to correlate strongly with covid mortality.

    D3 is dilatory. Calcifediol is fast-acting and its half-life in the blood is long. Calcifediol is used in immune cells to produce calcitriol, IF serum levels are high enough (>= 50 ng/ml). Calcitriol causes immune cells to specialize and to reduce inflammation appropriately.

    Some doctors prescribe calcitriol to treat covid, but there’s no good evidence that it works. There’s good evidence that calcifediol helps covid patients–potentially even in the ICU. Calcitriol is probably not taken up from the blood by immune cells because that could wreak havoc with calcium regulation in the middle of an infection.


    Here’s another instance of the importance of timing

    Early treatment with antivirals is key. 72 hours post symptom onset is a marker for when mortality begins, based on a study out of Peru.



    You can get calcifediol online as Fortaro (and maybe as Ampli-D) . $25 for a bottle of 60 pills, 10 mcg each.

    One strategy is to get tested for your vit. D level (actually, the labs test calcifediol levels), then calculate what it takes to get to 50 mcg /ml and supplement once accordingly, followed by D3 supplementation from then on. You can take multiple pills conveniently by crushing them and adding them to a shake or glass of milk.

    Calcifediol is well-tolerated, in any case. Toxic effects don’t begin until 150 mcg/ml, based on the literature.

    Disclaimer: I’m not a doctor and this is not medical advice.

    Liked by 1 person

      • thecovidpilot · October 18, 2021

        I looked at one of the papers that the FDA relied on.


        The study used leftover blood samples from patients hospitalized for covid from April 2020 through November 2020. There were major changes in standard of care in that period.

        The study was underpowered with only 148 blood samples. Stored in a refrigerator for months. How stable are these various vitamin D analogs when refrigerated for months? Were the samples exposed to light for very long? Were they left sitting out for long, maybe overnight?

        “Comparing the serum concentrations of all vitamin D metabolites and the VMR between survivors and non-survivors showed lower medians for 25(OH)D and VMR in non-survivors. Furthermore, the interquartile ranges of both parameters were substantially wider. However, these differences did not reach statistical significance.”

        Underpowered. Done only on hospitalized patients, which eliminated outpatients. Selection bias.

        The study was poorly designed. Too many mountains to take it seriously. This is FDA incompetence.

        Here’s an article on D3 stability:


        Liked by 1 person

      • Ron Clutz · October 18, 2021

        Thanks CP for digging into that and commenting here. Strange how often bias shows up already in the study design, in order to preclude an undesirable finding.

        Liked by 2 people

      • Ron Clutz · October 18, 2021

        Liked by 2 people

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