Diane
Lorraine; Doxycycline is an antibiotic, not a narcotic. Just wanted you to know. I have been diagnosed with IC for about 19 years and have tried everything. I am now taking Elavil, Neurontin and morphine to help me control the pain - and believe it or not - the frequency has decreased too. If I can be of any further help, please fee free to e-mail me.