<qa>  What is the maximum dose of acetaminophenparacetamol?- Topical or systemic diclofenac, celecoxib or any other non-sterioda anti-inflammatory drug however daily low-dose aspirin is allowed, as long as the patient has been on a stable dose, 100 mg once a day, for 60 days prior to the start of the study. Note: Patients may use acetaminophenparacetamol as needed 