FDA records indicate that there are no current recalls for this drug.
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Questions & Answers
Side Effects & Adverse Reactions
Historical data have shown that microfilaricidal drugs, such as diethylcarbamazine citrate (DEC-C), might cause cutaneous and/or systemic reactions of varying severity (the Mazzotti reaction) and ophthalmological reactions in patients with onchocerciasis. These reactions are probably due to allergic and inflammatory responses to the death of microfilariae. Patients treated with ivermectin for onchocerciasis may experience these reactions in addition to clinical adverse reactions possibly, probably, or definitely related to the drug itself (See ADVERSE REACTIONS, Onchocerciasis).
The treatment of severe Mazzotti reactions has not been subjected to controlled clinical trials. Oral hydration, recumbency, intravenous normal saline, and/or parenteral corticosteroids have been used to treat postural hypotension. Antihistamines and/or aspirin have been used for most mild to moderate cases.
Legal Issues
There is currently no legal information available for this drug.
FDA Safety Alerts
There are currently no FDA safety alerts available for this drug.
Manufacturer Warnings
There is currently no manufacturer warning information available for this drug.
FDA Labeling Changes
There are currently no FDA labeling changes available for this drug.
Uses
Ivermectin is indicated for the treatment of the following infections:
Ivermectin is indicated for the treatment of intestinal (i.e., nondisseminated) strongyloidiasis due to the nematode parasite Strongyloides stercoralis. This indication is based on clinical studies of both comparative and open-label designs, in which 64-100% of infected patients were cured following a single 200-mcg/kg dose of ivermectin (See CLINICAL PHARMACOLOGY, Clinical Studies).
Ivermectin is indicated for the treatment of onchocerciasis due to the nematode parasite Onchocerca volvulus.
This indication is based on randomized, double-blind, placebo-controlled and comparative studies conducted in 1427 patients in onchocerciasis-endemic areas of West Africa. The comparative studies used diethylcarbamazine citrate (DEC-C).
NOTE: Ivermectin has no activity against adult Onchocerca volvulus parasites. The adult parasites reside in subcutaneous nodules which are infrequently palpable. Surgical excision of these nodules (nodulectomy) may be considered in the management of patients with onchocerciasis, since this procedure will eliminate the microfilariae-producing adult parasites.
History
There is currently no drug history available for this drug.
Other Information
Ivermectin is a semisynthetic, anthelmintic agent for oral administration. Ivermectin is derived from the avermectins, a class of highly active broad-spectrum, anti-parasitic agents isolated from the fermentation products of Streptomyces avermitilis. Ivermectin is a mixture containing at least 90% 5-O-demethyl-22,23-dihydroavermectin A1a and less than 10% 5-O-demethyl-25-de(1-methylpropyl)-22,23-dihydro-25-(1-methylethyl)avermectin A1a, generally referred to as 22,23-dihydroavermectin B1a and B1b, or H2B1a and H2B1b, respectively. The respective empirical formulas are C48H74O14 and C47H72O14, with molecular weights of 875.10 and 861.07, respectively. The structural formulas are:
Ivermectin is a white to yellowish-white, nonhygroscopic, crystalline powder with a melting point of about 155°C. It is insoluble in water but is freely soluble in methanol and soluble in 95% ethanol.
Ivermectin tablets are available as 3-mg tablets containing the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, microcrystalline cellulose, and pregelatinized starch.
Sources
Limencin Patch Manufacturers
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Alexso Inc
Limencin Patch | Edenbridge Pharmaceuticals, Llc
StrongyloidiasisThe recommended dosage of ivermectin Tablets for the treatment of strongyloidiasis is a single oral dose designed to provide approximately 200 mcg of ivermectin per kg of body weight. See Table 1 for dosage guidelines. Patients should take tablets on an empty stomach with water (See CLINICAL PHARMACOLOGY, Pharmacokinetics). In general, additional doses are not necessary. However, follow-up stool examinations should be performed to verify eradication of infection (See CLINICAL PHARMACOLOGY, Clinical Studies).
Table 1: Dosage Guidelines for Ivermectin Tablets for Strongyloidiasis Body Weight (kg) Single Oral Dose
Number of 3-mg Tablets 15 to 24 1 tablet 25 to 35 2 tablets 36 to 50 3 tablets 51 to 65 4 tablets 66 to 79 5 tablets ≥80 200 mcg/kg OnchocerciasisThe recommended dosage of ivermectin Tablets for the treatment of onchocerciasis is a single oral dose designed to provide approximately 150 mcg of ivermectin per kg of body weight. See Table 2 for dosage guidelines. Patients should take tablets on an empty stomach with water (See CLINICAL PHARMACOLOGY, Pharmacokinetics). In mass distribution campaigns in international treatment programs, the most commonly used dose interval is 12 months. For the treatment of individual patients, retreatment may be considered at intervals as short as 3 months.
Table 2: Dosage Guidelines for Ivermectin Tablets for Onchocerciasis Body Weight (kg) Single Oral Dose
Number of 3-mg Tablets 15 to 25 1 tablet 26 to 44 2 tablets 45 to 64 3 tablets 65 to 84 4 tablets ≥85 150 mcg/kg
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