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Levamisole
Last reviewed: 23.04.2024
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Pharmacodynamics
Levamisole is a derivative of imidazole thiazole, and is included in the category of anthelminthic drugs used to treat nematodes. This active component has a rapid anthelminthic effect, which is manifested by its effect on ganglion-like nematode elements, resulting in suppression of the fumarate dehydrogenase, and in addition, the succinate dehydrogenase activity is blocked. Also depolarizing paralysis begins in the neuromuscular area of the muscular wall in helminths, which causes bioenergetic processes of parasite activity to be violated. Inhabitants of the nematode are paralyzed and then excreted by intestinal peristalsis during defecation (24 hours after the use of the drug tablets).
Pharmacokinetics
Absorption of the drug from the digestive tract after oral administration is carried out quite quickly. It takes about 1.5-2 hours to reach peak plasma values.
The drug is subjected to the processes of hepatic metabolism, as a result of which the main metabolites of drugs - p-hydroxy-levamisole together with its glucuronic derivative are formed. The half-life varies in the interval of 3-6 hours.
The unchanged component is excreted in the urine (less than 5%), as well as with feces (less than 0.2%).
Dosing and administration
Use of the levamisole during pregnancy
Use of the drug for feeding or pregnancy is allowed only if the benefit to the mother is more likely than the appearance of complications in the fetus or child.
Contraindications
Among the contraindications: increased sensitivity to the elements of drugs, as well as age younger than 14 years.
Caution is needed when prescribing the drug to people with a depressed hematopoietic process in the bone marrow, hypersensitivity to sugars, and also with renal / hepatic diseases.
Side effects of the levamisole
With a single use of the drug, there are usually no side effects.
In the treatment occasionally, short-lived, weakly expressed and self-destructive disorders can occur. Among them: the development of diarrhea, leukopenia, encephalopathy, agranulocytosis, vomiting or nausea, headache or abdominal pain, the appearance of palpitations, seizures, dizziness and insomnia. There may be symptoms of intolerance in the form of rashes on the skin or itching, as well as edema Quincke.
Overdose
After using drugs at a dosage of more than 600 mg, poisoning symptoms such as nausea with vomiting, dizziness, diarrhea, headaches, spasms, convulsions, sensation of confusion were observed. There is also a possibility of lethargy.
To eliminate these disorders, you should clean the gastrointestinal tract (gastric lavage, enema), as well as carry out symptomatic procedures, all the time tracking important for the life of the victim testimony. If due to intoxication anticholinesterase effect is detected, it is required to administer atropine to the patient.
Interactions with other drugs
The combined use of drugs with phenytoin suggests an increase in its indices inside the plasma, because of which its effect is also enhanced.
Combined use with anticoagulants coumarinovogo number can prolong the level of PTV, so the dose of anticoagulants should be selected very carefully.
When combined with lipophilic preparations (carbon tetrachloride and ether, as well as chloroform, mud oil and tetrachlorethylene), the toxic properties of the drug may increase.
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Special instructions
Reviews
Levamizol receives in the majority of its positive responses about its action in eliminating helminths. But in this case, patients often note that the medicine causes the appearance of individual negative reactions - abdominal or headaches, vomiting with nausea, palpitation and diarrhea. Because of this, before using the drug, patients are advised to make sure that they have no contraindications to admission, and in addition to observe the prescribed dosages and follow the recommendations prescribed by the treating doctor.
Attention!
To simplify the perception of information, this instruction for use of the drug "Levamisole" translated and presented in a special form on the basis of the official instructions for medical use of the drug. Before use read the annotation that came directly to medicines.
Description provided for informational purposes and is not a guide to self-healing. The need for this drug, the purpose of the treatment regimen, methods and dose of the drug is determined solely by the attending physician. Self-medication is dangerous for your health.