Check the Paxlovid site for drug interactions. I recall there being a lot of information and a good table describing level of interaction for various drugs. When I had Covid I had just had a cardiac stent and was taking Plavix. I could not take Paxlovid because of it ....very clearly stated in information on Paxlovid.
I always check my drug interactions when I take something new. Do not depend on the pharmacy! I had to take Prednisone and Bactrim together. I discovered that Prednisone decreases Potassium and Bactrim increases Potassium. I take prescription supplements for Potassium, so I had to adjust my dosage accordingly and follow with blood work. Pharmacy never mentioned anything.