A Study to Compare How the Study Medicine (PF-07923568) is Processed in Participants With Different Levels of Loss of Liver Function to Healthy Participants.

Exclusion Criteria

• •Any condition or surgery possibly affecting drug absorption (eg, prior bariatric surgery, gastrectomy, ileal resection)
• •Positive HIV antibodies
• •Positive drug or alcohol test eGFR \<60 mL/min/1.73m2 at screening
• •Stable concomitant meds and hepatic impairment with no change in the last 28 days
• •Hepatic carcinoma or hepatorenal syndrome or limited predicted life expectancy (defined as \<1 year).
• •A diagnosis of hepatic dysfunction secondary to any acute ongoing hepatocellular process that is documented by medical history, PE, liver biopsy, hepatic ultrasound, CT scan, or MRI.
• •History of gastrointestinal hemorrhage due to esophageal varices or peptic ulcers less than 4 weeks prior to screening.
• •--Severe ascites and/or pleural effusion, except for those categorized as severe hepatic impairment who may be enrolled provided participant is medically stable, per the investigators' medical judgment.
• •Previously received a kidney, liver, or heart transplant. ALT/AST greater than 5X upper limit normal