Why Was Ivermectin Invented, and Who Makes It?

Who created Ivermectin

Ivermectin was first obtained as an active ingredient for drugs in the 1970s. The scientists of one of the world’s largest pharmaceutical companies headquartered in the USA, Merck Pharmaceuticals, and their Japanese colleagues did it.

Where was Ivermectin invented?

The bacteria used to get Ivermectin were found in Japan.

Why was Ivermectin created?

US-Japanese scientists were looking for chemicals that could treat animal parasitic infections. They were looking for remedies from such parasites as:

  • Nematodes (particularly flatworms and roundworms);
  • Arthropods (fleas and lice).

Where does Ivermectin come from?

The discovery of Ivermectin happened, in fact, by accident. The partners of Merck in these studies, scientists of the Kitasato Institute, a medical research facility in Japan, found the bacteria that would later be used to get Ivermectin in the soil near a golf course in Japan. So far, these bacteria have not been found anywhere else in the world.

The chemical substance Avermectin was obtained from the bacteria. However, it was very toxic. So, it was transformed into a drug with fewer side effects called Ivermectin.

In 2015, the inventor of Ivermectin, head of the Kitasato Institute Satoshi Omura, won the Nobel Prize in Physiology or Medicine for his discovery.

Who created Ivermectin?

Although Satoshi Omura is considered the creator of Ivermectin, Merck Pharmaceuticals is the maker of Ivermectin. In 1981, the company launched the drug to the market when it was approved for veterinary use under the brand name Ivomec.

The researchers of Merck, led by William Campbell, adapted Ivermectin for humans. First, they found that this drug was effective in fighting a parasite that causes a disease in humans called river blindness.

Research in this area started in 1982. And in 1987, Ivermectin was approved for the treatment of river blindness. After its large-scale and free application with the help of the UN in Latin America, in 20 years, it was possible to practically eliminate river blindness, preventing it in about 600,000 cases.

For this, William Campbell and Satoshi Omura got the title of Nobel laureate in 2015.

Which pharmaceutical company makes Ivermectin?

What company manufactures Ivermectin?

Currently, Merck is the manufacturer of the drug under the trade name Ivermectin. However, since the patent expired in 1996, some other companies have made generics under this and other brand names.

Who manufactures Ivermectin generics?

  • Merck manufactures Stromectol, Mectizan;
  • Merial Animal Health makes Ivomec;
  • Alive Pharmaceutical produces Iver-DT;
  • Valeant Pharmaceuticals International makes Ivexterm;
  • Delta Pharma Ltd. launched Scabo 6 to the market;
  • Indofarma is going to bring Ivercov 12 to market by the end of the year;
  • A Brazilian company Vitamedic Industria Farmaceutica and an Indian company Taj Pharmaceuticals Ltd. use the traditional name Ivermectin.

In addition to the above, on the market, there are many manufacturers and drugs under the trade names Heartgard, Sklice, Soolantra, etc.

Not all of them make drugs of the same purity and effectiveness, so the question “Which company produces Ivermectin?” is important enough for buyers.


Ivermectin is one of the most important discoveries in pharmaceuticals. The fact that two scientists who took part in its creation won the Nobel Prize confirms it.

More than 5 million people worldwide use this drug to fight parasites. You can add to them an infinite number of animals.

Different companies manufacture the drug under various brand names.