. Ask Us Anything ! The temperature range is determined by the base elastomer used. This chart depicts the maximum temperature range for each elastomer. The temperature range for a specific compound may not reach these maximum limits.
The cost for a weekly dose (7.5 to 15.0 mg) of methotrexate tablets ranges from $6 to $15 for the generic product and from $9 to $22 for Rheumatrex. The weekly cost for methotrexate injection (generic only) ranges from $6 to $25. 09-03-2010 #3.
Administration of Otrexup. Starting doses for methotrexate are 7.5 mg once weekly for people with rheumatoid arthritis, 10 mg/m2 once weekly for patients with polyarticular juvenile idiopathic arthritis, and 10 to 25 mg once weekly for psoriasis. Otrexup is administered as a once-weekly, subcutaneous injection.