Welcome
“May all be happy, may all be healed, may all be at peace and may no one ever suffer."
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- K
- L
- M
- N
- O
- P
- Q
- R
- S
- T
- U
- V
- W
- X
- Y
- Z
Molnupiravir - Brands
Molnupiravir is a preparation of Molnupiravir. It is an antiviral drug which is orally active and is developed for the treatment of influenza. It is a prodrug of the synthetic nucleoside derivative N4-hydroxycytidine, and exerts its antiviral action through introduction of copying errors during viral RI\IA replication including SARS-CoV-2, the causative agent of C0VID-19. Molnupiravir is a shape-shifter, called a tautomer. It assumes two forms, one which closely resembles uracil and the other cytosine. Because it appears in these two different forms, once it is recopied, the replicating polymerase develops transition mutations, where a U nucleotide is converted to a C and a C to U. Copying RNA that contains Molnupiravir results in fatal flaws in the sequence, stopping replication, shortening infection, and limiting transmission. The difference between the structure of an authentic nucleotide and Molnupiravir is apparently too subtle to trigger removal by the exonuclease repair function of the viral polymerase, a function that has bedeviled these of many other nucleoside inhibitors.
Pharmacology
Molnupiravir inhibits viral reproduction by promoting widespread mutations in the replication of viral RNA by RNA-directed RNA polymerase. It is metabolized into a ribonucleoside analog that resembles cytidine, β-D-N 4-Hydroxycytidine 5′-triphosphate (also called EIDD-1931 5′-triphosphate or NHC-TP). During replication, the virus's enzyme incorporates NHC-TP into newly-made RNA instead of using real cytidine.
Molnupiravir can swap between two forms (tautomers), one of which mimics cytidine (C) and the other of which mimics uridine (U). NHC-TP is not recognized as an error by the virus' proofreading exonuclease enzymes, which can replace mutated nucleotides with corrected versions. When the viral RNA polymerase attempts to copy RNA containing molnupiravir, it sometimes interprets it as C and sometimes as U. This causes more mutations in all downstream copies than the virus can survive, an effect called viral error catastrophe or lethal mutagenesis.
To be happy, beautiful, healthy, wealthy, hale and long-lived stay with DM3S.