Patients should complete the entire course of treatment, which consists of:

Morning Dose

One dose in the morning consisting of:

  • Two pink tablets (150 mg of nirmatrelvir)
  • One white tablet (100 mg of ritonavir)

Evening Dose

One dose in the evening consisting of:

  • Two pink tablets (150 mg of nirmatrelvir)
  • One white tablet (100 mg of ritonavir)

For 5 Days in a Row

Take PAXLOVID tablets every 12 hours at about the same time each morning and evening. It will help you remember when to take it.

PAXLOVID is to be taken for 5 days. Continue taking PAXLOVID until you finish the pack as advised by your doctor.

Nirmatrelvir (pink tablet) must be taken together with ritonavir (white tablet).


If you forget to take PAXLOVID

If you take more than your prescribed dose of PAXLOVID

If you have taken more than your prescribed dose of PAXLOVID at any time, you may need urgent medical attention.

You should immediately:

You should do this even if there are no signs of discomfort or poisoning.

What should I know before I take PAXLOVID?


Do not take PAXLOVID if:

Check with your doctor if you:

Pregnancy and breastfeeding
Tell your doctor if you become pregnant or plan to become pregnant, breastfeeding or plan to breast feed. You should not breast-feed your baby while taking PAXLOVID and for 7 days after stopping treatment.

You should not be taking PAXLOVID if you are pregnant.

Women of childbearing potential should be on an effective contraceptive method before starting treatment and for 7 days after stopping treatment.

What if I am taking other medicines?

Tell your doctor or pharmacist if you are taking any other medicines, including any medicines, vitamins or supplements that you buy without a prescription from your pharmacy, supermarket or health food shop.

Some medicines cause serious or life-threatening side effects or affect how PAXLOVID work. These include:

If you are taking any of these medications, please speak to your doctor before you commence PAXLOVID.

Check with your doctor or pharmacist if you are not sure about what medicines, vitamins or supplements you are taking and if these affect PAXLOVID.

What should I know while taking PAXLOVID?

Nirmatrelvir must be taken together with ritonavir.

Tell your doctor if you become pregnant or plan to become pregnant, or if you are breastfeeding or plan to breastfeed.
Call your doctor straight away if you become pregnant while taking this medicine.

Things you should NOT do
Do not stop taking this medicine suddenly or change the dosage without consulting with your doctor.

Do not give your medicine to anyone else, even if they have the same condition as you.

Driving or using machines
Be careful before you drive or use any machines or tools until you know how PAXLOVID affects you.

Drinking Alcohol
No information available

Looking after your medicine
Store PAXLOVID below 25°C.
Store it in a cool dry place away from moisture, heat or sunlight; for example, do not store it:

Do not take this medicine after the expiry date.
Keep it where young children cannot reach it.

If you no longer need to take this medicine or it is out of date, take it to any pharmacy for safe disposal.

How to verify your tablets are authentic

PAXLOVID must be prescribed by a licensed healthcare provider and supplied by a Government approved pharmacy or medical facility.

Authentic PAXLOVID, from Pfizer Australia Pty Ltd., will include the Pfizer name on the label and will be packaged in 5 aluminum push-through blister cards. Individual doses are not for sale. PAXLOVID will be packaged in a rectangular carton. The carton has a colourless, glossy coating that contains a repeated pattern of the Pfizer name and logo all over the tablet, and these repeating features are seen in a contrasting matte finish.

PAXLOVID consists of tablets for a 5-day oral treatment regimen, with morning and evening doses.

To verify that the tablets are legitimate, look for the following specific text on each side of the tablet

Tablet Text
nirmatrelvir Front: 3CL | Back: PFE
ritonavir Front: NK | Back: No text
Pfizer is committed to patient safety and ensuring that people have accurate information about PAXLOVID, including how it is accessed and administered. We are actively monitoring for offers of illegitimate PAXLOVID to protect patients from products that might be dangerous and lead to serious or life-threatening harm.

If you suspect the product you have received may be counterfeit, contact us at 1800 675 229 or visit