Hello, Bentyl act as antispasmodic use for spasmodic pain of the abdomen. It is used temporarily and not permanent use. Microscopic colitis may need to treat with anti-inflammatory and antibiotic drugs. Please consult your physician he will examine and treat you accordingly. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Penchila Prasad Kandikattu