Mon-13-07-2015, 16:01 PM
Quote:
Half-Life - The terminal half-life reported for methotrexate is approximately three to ten hours for patients receiving treatment for psoriasis, or rheumatoid arthritis or low dose antineoplastic therapy (less than 30 mg/m2). For patients receiving high doses of methotrexate, the terminal half-life is eight to 15 hours.
I got this from drugs dot com. However, if you're in remission it takes time for new flare to occur. Call it a startup cost. It doesn't necessarily have anything to do with having some active drug in your body.