Ivermectin is an antiparasitic medication used to treat various conditions caused by internal and external parasites. When taken orally, it is prescribed for conditions such as onchocerciasis (river blindness), strongyloidiasis, and scabies in humans [1]. It is also used in some regions to control intestinal worms like ascariasis and hookworm [2].
What conditions does oral ivermectin treat?
Oral ivermectin is primarily prescribed for parasitic infections. These include river blindness (onchocerciasis), which is caused by the parasitic worm Onchocerca volvulus, and strongyloidiasis, an intestinal roundworm infection caused by Strongyloides stercoralis [1]. It is also a treatment for scabies, a skin infestation by mites [1]. In some areas, it is used to treat other intestinal nematode infections like ascariasis and hookworm [2].
How does oral ivermectin work?
Ivermectin works by interfering with the nerve and muscle function of parasites. It binds to glutamate-gated chloride ion channels in invertebrate nerve and muscle cells, causing an influx of chloride ions. This leads to hyperpolarization of the cells, resulting in paralysis and eventual death of the parasite [3].
What are the common side effects of oral ivermectin?
When taken orally, ivermectin can cause side effects, though these are generally mild and infrequent. Common reactions include dizziness, itching, nausea, diarrhea, and abdominal pain [4]. More serious side effects are rare but can include neurological effects such as confusion or seizures, and severe allergic reactions [4].
What is the dosage for oral ivermectin?
The dosage of oral ivermectin is typically based on body weight. For example, the standard dose for onchocerciasis is 150 micrograms per kilogram of body weight, administered every 6 to 12 months [1]. For strongyloidiasis and scabies, a single dose of 200 micrograms per kilogram is often prescribed, sometimes followed by a second dose a week later depending on the severity and response [1]. Dosing for other conditions may vary.
Are there any safety concerns with using oral ivermectin?
Safety concerns primarily relate to potential side effects and contraindications. Ivermectin is generally not recommended for pregnant or breastfeeding individuals, or for children weighing less than 15 kilograms [5]. Individuals with certain neurological conditions or hypersensitivity to the drug should also avoid its use. The World Health Organization (WHO) recommends its use only for approved indications under medical supervision [3].
Where can I find more information on ivermectin drug patents and exclusivity?
Information regarding drug patents, exclusivity periods, and potential generic competition for ivermectin and its formulations can be found on DrugPatentWatch.com [6]. This resource tracks patent expirations and market exclusivity, which are crucial for understanding the availability of generic versions of medications.