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Groprinosin - immunostimulating drug with antiviral effect. It is a complex containing inosine and 4-acetamidobenzoic acid salt with N, N-dimethylamino-2-propanol in a molar ratio of 1: 3.
The effectiveness of the complex is determined by the presence of inosine, the second component increases its availability for lymphocytes. Groprinosin blocks the multiplication of viral particles by damaging the genetic apparatus, stimulates macrophage activity, proliferation of lymphocytes and the formation of cytokines.
Reduces the clinical manifestations of viral diseases, accelerates convalescence, increases the resistance of the body.
When Gropronosin is prescribed as an auxiliary drug for infection of the mucous membranes and skin caused by the Herpes simplex virus, faster healing of the affected surface occurs than with conventional treatment. More rarely new vesicles, swelling, erosion and relapse of the disease. With the timely use of the drug, the incidence of viral infections decreases, the duration and severity of the disease decreases.
After ingestion, the drug quickly and almost completely (> 90%) is absorbed and has good bioavailability. When administered orally at a dose of 1500 mg Cmax, inosine pranobex is achieved after 1 hour and is 600 μg / ml. Not detected in the blood after 2 hours after ingestion.
Distribution and Metabolism
Inosine pranobex consists of inosine and p-acetamidobenzoic acid salt with N, N-dimethylamino-2-propanol. Each of the components of inosine pranobex is rapidly metabolized. Virtually 100% of metabolites are found in the urine in the range of 8 to 24 hours from the time of admission. Inosine is metabolized by a cycle typical of purine nucleotides, with the formation of uric acid, the concentration of which in the blood serum can increase. As a result, it is possible to form crystals of uric acid in the urinary tract. The increase in the concentration of uric acid is non-linear and can vary by ± 10% within 1-3 hours after ingestion. As a result of the metabolism of p-acetamidobenzoic acid, o-acylglucuronide is formed; N, N-dimethylamino-2-propanol is metabolized to the N-oxide. AUC of p-acetamidobenzoic acid> 88%, AUC of N, N-dimethylamino-2-propanol> 77%. Cumulation drug in the body is not found.
Inosine and its metabolites are excreted in the urine. When the equilibrium concentration is reached with a daily dose of 4 g, the daily urinary excretion of p-acetamidobenzoic acid and its metabolite is approximately 85% of the dose taken; T1 / 2 - 50 min. T1 / 2 N, N-dimethylamino-2-propanol, 3-5 hours.
Complete elimination of inosine pranobeksa and its metabolites from the body occurs within 48 hours.
With caution should prescribe a drug with inhibitors of xanthine oxidase, diuretics, zidovudine, with acute renal failure.
Groprinosin take inwards, after eating, washed down with a small amount of water, at regular intervals (8 or 6 hours) 3-4 times a day. If the doctor does not appoint otherwise, then take: adults - from 6 to 8 table. in the day, in 3-4 sessions; children - 50 mg / kg / day, in 3-4 hours. In severe infections, the dose can be increased (under the supervision of a doctor) to 100 mg / kg / day, in 4-6 receptions. The course is usually 5 days (if necessary, you can increase); After 8 days, the course of treatment can be repeated.
Groprinosin, like other antiviral agents, is most effective in acute viral infections if treatment is started at an early stage of the disease (better from the first day).
Since inosine is excreted from the body in the form of uric acid, with prolonged use it is recommended to periodically monitor the concentration of uric acid in serum and urine. Patients with a significantly increased concentration of uric acid in the body can simultaneously take drugs that lower its concentration.
It is necessary to monitor the concentration of uric acid in the blood serum when taking Groprinosin simultaneously with drugs that increase the concentration of uric acid, or drugs that disrupt kidney function.
Grogrinosin should be used with caution in patients with acute liver failure, because the drug is metabolized in the liver.
Impact on the ability to drive vehicles and manage mechanisms
The effect of Groprinosin on the psychomotor functions of the body and the ability to control vehicles and moving mechanisms has not been investigated. When using the drug should take into account the possibility of dizziness and drowsiness.
Application for violations of liver function
Patients with acute hepatic impairment require a reduction in the dose of the drug. the process of metabolism of inosine pranobeks occurs in the liver.
Application for violations of kidney function
The drug is contraindicated in urolithiasis.
Side effects are defined as frequent (> 1/100 and 1/1000 and
From the nervous system: often - headache, dizziness, fatigue, poor health; infrequently - nervousness, drowsiness, insomnia.
From the digestive tract: often - decreased appetite, nausea, vomiting, pain in epigastrium; infrequently diarrhea, constipation.
From the hepatobiliary system: often - increased activity of liver enzymes, alkaline phosphatase.
From the skin and subcutaneous fat: often - itching, rash.
From the side of the kidneys and urinary tract: rarely - polyuria.
Allergic reactions: infrequent - patchy-papular rash, hives, angioedema.
From the musculoskeletal system: often - joint pain, exacerbation of gout.
Other: often - increasing the concentration of blood urea nitrogen.
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