I have been on methotrexate for some 5 years now, orally initially, but after I got breast cancer
in 2003, and had to suspend mtx because I was having FEC chemo. Since then have been on weekly self administered injections. This, coupled with daily codeine phosphate, and recently some antibiotics such as amoxiclav and cipro, have been enough to bring the daily diarrhoea under control. Got my life back again and don't have to wear senior's diaper pads!