1 Star2 Stars3 Stars4 Stars5 Stars (2 votes, average: 5.00 out of 5)

Stromectol: the invention, uses, and dosages

Last updated on: September 21, 2021

Stromectol (Ivermectin) has entered human history as a means of salvation from diseases caused by parasites. Stromectol is used to treat the negative effects caused by parasites that have penetrated in animals or humans. 

By the drug are treated such diseases of the human body:

  • Head lice
  • Scabies
  • Strongyloidiasis
  • Trichuriasis
  • Ascariasis
  • Lymphatic filariasis

Ivermectin was discovered by scientists Satoshi Ōmura and William Campbell in 1975. However, the drug began to be actively used in medicine in 1981. Medical supply has saved people from the so-called River Blindness disease, which was prevalent in most African countries. The disease was transmitted through a bite of the blackflies.

Ivermectin Present Absent

This disease was caused by parasitic worms, and in many cases provoked complete blindness. At that time, doctors did not invent a method of treating River Blindness. While the patients had already come to terms with their unfortunate fate, Stromectol has restored their hope to cure the disease. 

The use of the drug was able to overcome River Blindness and save millions of people. Its peculiarity was in provoking the death of the parasite in the human body, with minimal impact on human health. A drug did not cause inflammation and caused few side effects. Due to its effectiveness and safety, Ivermectin is actively used in medicine nowadays as a drug that treats diseases caused by various parasites.

What is Stromectol Used for?

Ivermectin treats diseases caused by worm infections. They include onchocerciasis, strongyloidiasis, and scabies. 


If a person has onchocerciasis, will suffer eyes, skin, and lymph nodes. When the parasite is exposed to the eye, the patient may experience pain, suffering from conjunctivitis, or even lose sight. Skin symptoms include an itchy rash, spots of various shades (pale or dark), rough skin, subcutaneous nodules, and loss of skin elasticity. 


If a patient is diagnosed with strongyloidiasis, the disease will spread to the skin and intestines. Symptoms include any discomfort in the stomach and its consequences: 

A person can also feel dizzy. On the skin may appear an itchy rash. 

Ivermectin B1a chemical formula


When infected with scabies, the affected area is the skin. Symptoms include discomfort, intense itching, which worsens at night. Itching is complemented by lumps on the skin or blisters. 

Common places of infection of adults:

  • the wrists
  •  female breasts
  •  between the fingers
  •  penis
  •  underarm areas
  •  scrotum
  •  buttocks

 Common places of infection of infants:

  •  Scalp
  •  Face
  •  soles
  •  Palms

Scabies is a contact disease that is transmitted both through sexual intercourse and through direct skin-to-skin contact. The infection is also transmitted through furniture or clothing. Therefore, if you have contact with a patient, you need to go to the hospital immediately.

What are Exact Dosages of Ivermectin?

For the treatment of each disease, separate doses of medication are prescribed. The number of tablets the patient should take depends on his weight. For humans, the drug is used only orally. The tablets are taken with water around 1 before meals.

Stromectol Dosages Guidelines


A single oral dose for the treatment of strongyloidiasis is 200 mcg per kilogram (per 2.2 pounds) of the person’s weight. 

Dosed use of Stromectol for Strongyloidiasis. 1 tablet contains 3 mg of the active substance.

1 tablet

From 15 to 24 kilograms (33-53 pounds) 

2 tablets

From 25 to 35 kilograms (55-77 pounds)

3 tablets

From 36 to 50 kilograms (79-110 pounds)

4 tablets

From 51 to 65 kilograms (112-143 pounds) 

5 tablets

From 66 to 79 kilograms (145-174 pounds) 

200 mcg/kg

More than 80 kilograms (176 pounds) 

It is not advisable to take additional doses, because in most cases they are not needed.


A single oral dose for the treatment of strongyloidiasis is 150 mcg per kilogram (per 2.2 pounds) of the person’s weight. The tablets are usually taken by patients for 1 to 2 days, but there are exceptions set by doctors.

Dosed use of Stromectol for Onchocerciasis. 1 tablet contains 3 mg of the active substance. 

1 tablet

From 15 to 25 kilograms (33-55 pounds)

2 tablets

From 26 to 44 kilograms (57-97 pounds)

3 tablets

From 45 to 65 kilograms (99-143 pounds)

4 tablets

From 66 to 84 kilograms (145-185 pounds)

150 mcg/kg

More than 85 kilograms (187 pounds)

Interactions of Stromectol With Other Medicines

Before taking different medications at the same time, you need to know whether this will lead to serious side effects. Some medications can be safely taken together. However, some drugs in combination can harm a person’s health. That is why, before taking two different types of drugs, you need to ask whether it is safe. Ivermectin can be used with barbiturates (phenobarbital, butalbital) , benzodiazepines (clonazepam, lorazepam), sodium oxybate, and valproic acid.

Possible Side Effects of Stromectol

Like any other medicine, Ivermectin can cause side effects. Side effects are a phenomenon that occurs individually, each person has different side effects, and some do not feel them at all. Side effects divide into safe and dangerous. In case you feel any dangerous side effects you need to see a doctor immediately. Therefore, if you feel irritation, pain, and redness of the eyes or eyelid it is a sign that you need to seek professional help urgently.  

However, there are minor side effects that are not dangerous to humans.  During treatment for onchocerciasis, the patient may have:

  • Fever
  • skin irritation
  • muscle and joint pain
  • palpitations. 
  • Less often side effects are 
  • Headaches
  • increased sweating

In rare cases, the patient may feel dizzy after getting up from a sitting or lying position. If you are being treated for Strongyloidiasis, you may:

  • lose your appetite
  • start shaking or trembling
  • feel drowsy

If you experience symptoms of a severe allergic reaction, you should contact your doctor immediately:

  • rash
  • Irritation
  • Itching
  • shortness of breath


Although Ivermectin is safe for both infants and the elderly, scientists have not yet proven that it is completely safe to use during pregnancy. After all, during breastfeeding, drugs are excreted in milk and enter the body of the baby. Therefore, it is not advisable to use it during pregnancy.

How Long Does Stromectol Stay in Your System?

Upon admission, GABA is released, which leads to paralysis of the worms. Parasites lose the ability to fully feed and attach to the intestinal wall, resulting in death. The parasitic infection comes out together with fecal masses. When the drug enters the body, the main component is absorbed into the blood and spreads throughout the digestive system. The drug is evenly distributed throughout the body and even gets on the mucous membranes of the eyes. 

Medicines are completely removed from the body in twenty-eight hours.

During medical treatment, your doctor will check the progress of the disease.  During regular visits, the doctor will be able to make sure that the infection is eliminated from the body. If you are being treated for River Blindness, you will need to see an ophthalmologist after completing the treatment process. To check if the medicine has been detected during treatment for Strongyloidiasis, your doctor will check for stool samples within 3 months after you have finished taking the tablets.

Storage of the Drug

It should be stored in a dry place, the temperature should not exceed 30° C. Overheating the drug may lose its properties. It should be stored in a box, away from moisture (bathroom).

Leave a Reply
Notify of