. 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.
Otrexup auto-injectors are available in strengths of 10, 15, 20, and 25 mg of methotrexate per 0.4 mL. The usual dosage of methotrexate for patients with rheumatoid arthritis ranges from 7.5 to 25 mg once weekly. Otrexup should be administered SC in the abdomen or thigh.