Ribavirin is easily penetrates into the affected cells and virus rapidly phosphorylated intracellular adenosine ribavirin in mono, di – and triphosphate. These anavar for sale metabolites, especially ribavirin triphosphate, have pronounced antiviral activity.
The mechanism of action of ribavirin is not well understood. However, it is known that Ribavirin inhibits inosine monophosphate dehydrogenase , this effect leads to a marked decrease in the level of intracellular guanosine triphosphate , which is in turn accompanied by suppression of the synthesis of viral and virus-specific proteins. Ribavirin inhibits the replication of new virions that reduces viral load. Ribavirin selectively inhibits the synthesis of viral anavar for sale without inhibiting synthesis in the normally functioning cells.
Ribavirin is effective against many viruses. The most sensitive to ribavirin viruses include: Simplex herpes virus, poks-virus, virus of Marek’s illness. Insensitive to ribavirin viruses include: Varicella Zoster, pseudorabies, cow smallpox. The most sensitive to ribavirin viruses are: influenza A, B, paramyxovirus (parainfluenza, epidemic parotite, Nucasl’s illness), reoviruses, tumoral viruses. Insensitive to ribavirin viruses are: enteroviruses, rhinovirus, Semlicy Forest.
Ribavirin has activity against hepatitis anavar for sale virus . The mechanism of action of ribavirin against have not been fully elucidated. It is assumed that accumulates as phosphorylation ribavirin triphosphate competitively inhibits the formation of guanosine triphosphate, thereby reducing the synthesis of viral . It is also believed that the mechanism of the synergistic action of ribavirin and alpha interferon against due to increased phosphorylation of ribavirin with interferon.
Absorption: ribavirin when administered orally is absorbed quickly from the gastrointestinal tract. Moreover, its bioavailability is greater than 45%.
Distribution: ribavirin is distributed in plasma, mucous secretions and airway erythrocytes. A large number of ribavirin triphosphate accumulates in red blood cells, reaching a plateau at Day 4 and continue for several weeks after administration. poluraspredeleniya period of 3.7 hours, volume of distribution anavar for sale. In exchange reception ribavirin accumulates in plasma in large quantities. The ratio of the bioavailability (AUC – area under “concentration / time” curve) and by repeated single dose equal to 6. The high ribavirin concentrations (over 67%) can be detected in cerebrospinal fluid after prolonged use. Slightly bound to plasma proteins.
The time to reach maximum plasma concentration – from 1 to 1.5 hours. The time to reach a therapeutic concentration in the plasma depends on the minute blood volume.