Commonly used brand name(s):
In the U.S.
Available Dosage Forms:
Therapeutic Class: Anthelmintic
Chemical Class: Avermectin
Ivermectin is used in the treatment of certain worm infections. It is used to treat river blindness (onchocerciasis) and a certain type of diarrhea (strongyloidiasis). It may also be used for some other kinds of worm infections.
Ivermectin appears to work by paralyzing and then killing the offspring of adult worms. It may also slow down the rate at which adult worms reproduce. This results in fewer worms in the skin, blood, and eyes.
Ivermectin is available only with your doctor's prescription.
Once a medicine has been approved for marketing for a certain use, experience may show that it is also useful for other medical problems. Although these uses are not included in product labeling, ivermectin is used in certain patients with the following medical condition:
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For ivermectin, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to ivermectin or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Studies on ivermectin have been done only in adults and in children weighing 15 kilograms (kg) (33 pounds) and over, and there is no specific information comparing use of ivermectin in children weighing less than 15 kg with use in other age groups.
Many medicines have not been studied specifically in older people. Therefore, it may not be known whether they work exactly the same way they do in younger adults or if they cause different side effects or problems in older people. There is no specific information comparing use of ivermectin in the elderly with use in other age groups.
|All Trimesters||C||Animal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.|
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Using ivermectin with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
The presence of other medical problems may affect the use of ivermectin. Make sure you tell your doctor if you have any other medical problems, especially:
Ivermectin is best taken as a single dose with a full glass (8 ounces) of water on an empty stomach (1 hour before breakfast), unless otherwise directed by your doctor.
To help clear up your infection, take ivermectin exactly as directed. Your doctor may want you to take another dose every 3 to 12 months.
Your doctor may also prescribe a corticosteroid (a cortisone-like medicine) for certain patients with river blindness, especially those with severe symptoms. This is to help reduce the inflammation caused by the death of the worms. If your doctor prescribes these two medicines together, it is important to take the corticosteroid along with ivermectin. Take them exactly as directed by your doctor. Do not miss any doses.
The dose of ivermectin will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of ivermectin. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
It is important that your doctor check your progress at regular visits. This is to help make sure that the infection is cleared up completely. In addition, if you have river blindness (onchocerciasis), your doctor may want you to have your eyes checked by an ophthalmologist (eye doctor). If you have a certain type of diarrhea (strongyloidiasis), your doctor may want to examine three stool samples. This should be done over the 3-month period following treatment.
If your symptoms become worse, check with your doctor.
ivermectin may cause some people to become lightheaded. Make sure you know how you react to ivermectin before you drive, use machines, or do anything else that could be dangerous if you are lightheaded. If these reactions occur, check with your doctor.
Before you have any medical tests, tell the medical doctor in charge that you are taking ivermectin. The results of some tests (blood or liver tests) may be affected by ivermectin.
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:Less common—for the treatment of river blindness (onchocerciasis) only
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:More common—for the treatment of river blindness (onchocerciasis) only
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
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