Pfizer oral drug to fight COVID-19 will be launched next year, says CEO Albert Bourla
Pfizer is attempting oral and injection antivirals
Albert Bourla says oral drugs are given priority
Those who cannot go to hospitals can also receive oral antivirals
The regulator expects to get approval by the end of this year
The goal of the new drug is to prevent multiple variants
The mechanism of action of antivirals is not expected to be subject to mutation
Now, Spike proteins are subject to mutation
Remdesivir is the currently approved antiviral against corona
The drug, manufactured by Gilead Sciences, was given emergency approval last May
