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Please note that tax, investment, pension and ISA rules can change and the information and any views contained in this article may now be inaccurate.
Merck’s game changing oral Covid-19 drug shakes up biotech sector

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Please note that tax, investment, pension and ISA rules can change and the information and any views contained in this article may now be inaccurate.
Shares in Covid-19 vaccine makers Moderna and BioNTech lost around a quarter of their market value in the first two trading days of October after pharmaceutical company Merck released positive data for its oral Covid-19 tablet known as molnupiravir.
The tablet, taken twice daily over a five-day course, reduced the risk of hospitalisation by 50% in patients with mild-to-moderate cases of Covid-19.
Merck and partner Ridgeback Biotherapeutics said they intend to apply for emergency use which means the drug could be approved for use in high-risk patients within weeks.
Scott Gottlieb, former head of the US Food and Drug Agency, said the results of the trial were ‘phenomenal’ and could prove to be a game changer.
Assuming the results hold-up to peer review and safety standards, molnupiravir will be the first Covid-19 drug that can be purchased over the counter by adults who are symptomatic.
The US government has procured 1.7 million doses of the experimental drug at a cost of $1.2 billion or $705 per course. This seems quite steep compared with the estimated $20 to $30 per dose for current vaccines on the market.
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The value of your investments can go down as well as up and you may get back less than you originally invested. We don't offer advice, so it's important you understand the risks, if you're unsure please consult a suitably qualified financial adviser. Tax treatment depends on your individual circumstances and rules may change. Past performance is not a guide to future performance and some investments need to be held for the long term.