辉瑞新冠药怎么吃,什么时候吃？

How to take Pfizer’s new coronavirus drug

Pfizer's new coronavirus drug nematvir tablets/ritonavir tablets are taken orally and are used to treat mild to moderate new coronavirus pneumonia (COVID-19) patients with high risk factors for progression to severe disease in adults. The State Food and Drug Administration conditionally approved the import registration of Pfizer's new coronavirus treatment drug Paxlovid nematvir tablets/ritonavir tablets combination packaging in the form of emergency review and approval on February 12, 2022. Pfizer's new coronavirus drug nematvir/ritonavir (Paxlovid) is an oral drug. Patients must swallow the tablet whole and must not chew, break or crush it.

The taking time of Pfizer's new coronavirus drug nematvir tablets/ritonavir tablets (Paxlovid) is relatively convenient. It can be taken before or after meals, with or without food. The recommended dose of Pfizer's new coronavirus drug Nematvir tablets/ritonavir tablets (Paxlovid) is 300 mg of Nematvir (150 mg × 2 tablets, pink oval film-coated tablets are 2 tablets at a time) combined with 100 mg of Ritonavir (100 mg × 1 tablet, white or off-white film-coated tablets are 1 tablet at a time), administered orally every 12 hours, that is, twice a day, for 5 consecutive days.

While taking Pfizer's new coronavirus drug nematvir/ritonavir (Paxlovid), you need to take this product as soon as possible within 5 days after the diagnosis of COVID-19 and the onset of symptoms. If a patient requires hospitalization due to severe or critical COVID-19 after starting treatment with this product, it is also recommended to complete 5 days of treatment.

What should I do if I forget to take Pfizer’s new coronavirus medicine?

If you forget to take the Pfizer COVID-19 drug, that is, you have missed a dose, but if it is within 8 hours of the usual medication time, you should take it as soon as possible and continue taking the medication according to the normal dosing schedule. If a patient misses taking Pfizer's new coronavirus drug Nematvir/Ritonavir (Paxlovid) for more than 8 hours, the patient should not take the missed dose but should take the next dose according to the prescribed time. Do not take a double dose to make up for a missed dose.

Pfizer's new coronavirus drug nematvir tablets/ritonavir tablets (Paxlovid) are a protease inhibitor antiviral combination therapy. The former can block viral replication by inhibiting the activity of 3C-like protease. The function of ritonavir is to slow down the metabolism or decomposition rate of nematvir, so that its effective concentration in the body can be maintained for a long time and increase the antiviral activity.

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