Molnupiravir Vs Ivermectin – is There a Difference Between the Drugs?

Molnupiravir compared to Ivermectin

The appearance of Covid-19 led to large-scale studies on what medicine is best to treat it.

Molnupiravir was recognised as one of the best drugs that help in fighting coronavirus. However, at the same time, on social networks, there were rumours that it was just a well-known antiparasitic drug Ivermectin in a new package.

But that’s not so. The same company indeed manufactures both drugs (Merck), but if Molnupiravir compared to Ivermectin, it is obvious that they are entirely different drugs.

Let’s compare Molnupiravir vs Ivermectin in detail.

Molnupiravir vs Ivermectin: ingredients

Virologist Stephen Griffin confirmed that Molnupiravir and Ivermectin have:

  • different chemical composition;
  • different mechanisms of action.

The active ingredient of Molnupiravir is a synthetic nucleoside derivative of N4-hydroxycytidine.

The active ingredient of Ivermectin is a mixture of two semi-synthetic derivatives of avermectins biosynthesised by actinomycetes of Streptomyces avermitilis. They are macrocyclic lactones. And you can get the avermectins from bacteria found only in Japan.

From the above, it is clear that Molnupiravir and Ivermectin structures differ fundamentally.

Is Molnupiravir the same as Ivermectin

In the previous paragraph, we proved that the answer to the question “Is Molnupiravir Ivermectin?” is negative.

Paul Auwaerter, clinical director of the Division of Infectious Diseases at Johns Hopkins Medicine, answered the second, more difficult question, “Is Molnupiravir similar to Ivermectin?”. He stated that these drugs differ not only in action but also in structure.

Moreover, The Medicines and Healthcare Products Regulatory Agency reported that these two drugs contain different molecules.

Does Molnupiravir contain Ivermectin

No. Molnupiravir doesn’t contain Ivermectin. These drugs are based on different technologies (see above) and consist of different molecules.


Originally, Molnupiravir was an experimental drug for the flu, but it turned out that it is also an effective universal antiviral agent after a while. So, it is not surprising that in 2021 the FDA approved this drug for the treatment of Covid-19.

At the same time, Ivermectin studies demonstrated that the drug is ineffective in treating COVID-19. But for many years, it has effectively fought diseases associated with parasites.

These medicines are not similar to each other and are different medicines.