"Infliximab Biosimilar for Intravenous Drip Infusion 100 mg Pfizer Drug Use Investigation (Rheumatoid Arthritis)"

\<Rheumatoid arthritis\> The usual dose is 3 mg as Infliximab \[Infliximab Biosimilar 3\] for every kg of body weight given as an intravenous infusion. After an initial dose is given, the subsequent doses are given at Weeks 2 and 6, and every 8 weeks thereafter. After a dose at Week 6 is given, the dose may be increased or the dosing interval may be reduced for patients who have an incomplete response or reduced effects. These adjustments should be made in a stepwise manner. The maximum dose is 10 mg for every kg of body weight at the dosing interval of 8 weeks and 6 mg for every kg of body weight at a reduced dosing interval. The minimum dosing interval is 4 weeks. This drug should be given in combination with methotrexate.