Nupiravir

Molnupiravir ·Pharmasia Limited·Capsule

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Packages & prices

Pack	Price	Details
Unit Price	৳	Unit Price: BDT 40.00 (20's pack: BDT 800.00)

Administration

The recommended dose of Molnupiravir is four 200 mg capsules (4+0+4), every 12 hours for 5 days. Do not give this medicine to children and adolescents aged less than 18 years. The use of Molnupiravir in persons aged less than 18 years has not yet been studied.

Effects

Common side effects include diarrhoea, nausea, feeling dizzy, headache.

Indications

Molnupiravir is an antiviral medicine used to treat mild to moderate C0VID-19 (caused by SARS-CoV-2) in adults who are at risk for developing severe illness. Molnupiravir may help people with C0VID-19 stay out of the hospital and feel better. Emergency use authorized oral therapeutic for the treatment of C0VID-19 in Non-hospitalized patients with mild or moderate disease.

Asymptomatic or pre-symptomatic Infection: Individuals who test positive for SARS-CoV-2 by virologic testing using a molecular diagnostic (e.g., polymerase chain reaction) or antigen test, but have no symptoms.

Mild illness: individuals who have any of the various signs and symptoms of COVID-19 (e.g., fever, cough, sore throat, malaise, headache, muscle pain) without shortness of breath, dyspnoea, or abnormal chest imaging.

Moderate illness: Individuals who have evidence of lower respiratory disease by clinical assessment or imaging and saturation of oxygen (Sp02) >94% on room air at sea level.

Severe illness: Individuals who have respiratory frequency >30 breaths per minute, Sp02 <94% on room air at sea level, ratio of arterial partial pressure of oxygen to fraction of inspired oxygen (Pa02/Fi02) <300 mmHg, or lung infiltrates >50%.

Critical illness: individuals who have respiratory failure, septic shock, and/or multiple organ dysfunction.

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.

Precautions

There are limited clinical data available for Molnupiravir. Serious and unexpected adverse events may occur that have not been previously reported with Molnupiravir use.