humira is used to slow down the progression of rheumatoid arthritis (ra). it is considered a biologic disease-modifying antirheumatic drug. therefore this drug must be taken for some time to make a difference in the outcome of ra. some ra patients will see results as soon as 2 weeks. for others it may take up to 3 months. you will know humira is working when you notice less pain swelling and joint stiffness. humira is packaged in a single use pen or syringe. adults with rheumatoid arthritis are prescribed one pen or syringe (40 mg) every other week. for patients with rheumatoid arthritis who are not on the medication methotrexate humira may be taken every week.
how long is one shot or pen of humira effective for (rheumatoid arthritis)?