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Ivermectin 40mg
Medically Reviewed by – Brandon Hayes, PharmD
Last Updated on 8 July 2026

Ivermectin 40mg

$6.34 $7.15

Ivermectin 40mg is an antiparasitic medication used to treat infections caused by certain parasites. It is commonly prescribed for conditions such as strongyloidiasis, onchocerciasis (river blindness), and scabies. The medicine works by paralyzing and killing parasites in the body, helping to clear the infection. Doctors may also prescribe ivermectin for other parasitic conditions depending on the patient’s medical needs.

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Categories: Anthelmintic, Anti Worm

What is Ivermectin 40mg used for?

Ivermectin 40mg is an antiparasitic medicine used to treat infections caused by certain parasites. Doctors commonly prescribe it for conditions such as intestinal strongyloidiasis, onchocerciasis (river blindness), and scabies. The medicine works by paralyzing and killing parasites in the body. Ivermectin 40mg tablets may also be used for other parasitic infections depending on medical advice. Treatment helps reduce symptoms caused by parasites and supports the body in clearing the infection.

How to take Ivermectin 40mg?

  • Take Ivermectin 40mg tablet by mouth with a full glass of water.

  • It is usually taken on an empty stomach, at least 1 hour before a meal or 2 hours after eating.

  • The medicine is often given as a single dose, but some infections may require additional doses.

  • Follow your doctor’s prescription carefully.

  • Do not take more or less than the recommended amount.

Dosage instructions

  • The dose of Ivermectin 40mg depends on:

    1. Body weight

    2. Type of parasitic infection

    3. Overall health condition

  • Some infections require one-time dosing, while others may need repeat treatment after several days or weeks.

  • Always take the medicine exactly as prescribed.

  • Do not self-adjust the dose without medical advice.

Side effects

Common side effects may include:

  • Headache

  • Dizziness

  • Nausea or vomiting

  • Stomach pain

  • Diarrhea

  • Mild skin itching or rash

  • Fatigue or weakness

Seek medical help if severe symptoms occur such as:

  • Severe skin reactions

  • Swelling of the face or throat

  • Difficulty breathing

Drug interactions

Ivermectin 40mg may interact with certain medicines, including:

  • Blood thinners (such as warfarin)

  • Sedatives or medicines affecting the nervous system

  • Certain antibiotics

  • Medicines that affect liver enzymes

Important precautions:

Inform your doctor about all medicines you take, including

  • Prescription drugs
  • Over-the-counter medicines
  • Herbal supplements
  • Vitamins

Warnings

Before using Ivermectin 40mg, inform your doctor if you have:

  • Liver disease

  • Weak immune system

  • Neurological disorders

  • Allergy to ivermectin

Additional precautions:

  • Use only under medical supervision.

  • Pregnant or breastfeeding women should consult a doctor before use.

  • Avoid taking higher doses than prescribed.

Storage

  • Store Ivermectin 40mg tablets at room temperature.

  • Keep away from heat, moisture, and direct sunlight.

  • Store the medicine in its original packaging.

  • Keep out of reach of children and pets.

  • Do not use expired tablets and dispose of them safely if no longer needed.

FAQ’s

What to avoid when taking Ivermectin 40mg?

While taking Ivermectin 40mg, avoid alcohol and medications that may increase dizziness or drowsiness unless approved by your doctor. Patients should also avoid taking higher doses than prescribed. Inform your healthcare provider about all medicines and supplements being used to prevent unwanted interactions or side effects.

How do you know Ivermectin 40mg is working?

Ivermectin 40mg is considered effective when symptoms caused by the parasitic infection begin to improve. Signs may include reduced itching, less skin irritation, or relief from digestive symptoms depending on the infection. Doctors may also confirm treatment success through medical evaluation or laboratory tests when necessary.

Is Ivermectin 40mg safe for kidneys?

Ivermectin 40mg is generally considered safe for most people when used as prescribed. The medicine is mainly processed by the liver rather than the kidneys. However, individuals with existing health conditions should inform their doctor before taking the medicine to ensure it is appropriate and safe.

Does Ivermectin 40mg cause you to be tired?

Some people may feel tired, dizzy, or weak after taking Ivermectin 40mg. These effects are usually mild and temporary. They may occur as the body reacts to the medicine or to the parasites being cleared. If severe fatigue or unusual symptoms occur, patients should consult a healthcare professional.

Is a prescription required for Ivermectin 40mg Tablets?

Yes. A prescription is required for Ivermectin 40mg Tablets. This medicine should not be used without medical advice because the correct dose, treatment duration, and safety checks depend on your health condition and other medicines you may be taking.

Is Ivermectin 40mg Tablets available over the counter?

No. Ivermectin 40mg Tablets is not available over the counter. It is a prescription-only medicine, so it should be used only after a licensed healthcare provider confirms it is suitable for your condition and explains the correct dosage, precautions, and possible interactions.

Where can I buy Ivermectin 40mg online at a discounted price?

You can buy Ivermectin 40mg online at a discounted price from InternationalDrugMart. This trusted online pharmacy offers affordable rates, secure checkout, and reliable global shipping. Shop conveniently from home and get your treatment delivered to your doorstep. Save more on quality healthcare with InternationalDrugMart today.

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