Antibiotics have no effect on my UC either way, but I haven't taken many kinds..there's always the chance, however.
Regarding your situation, one wouldn't know for sure if you had something else going on in your colon that helped keep your UC active unless you had stool samples done before you took them and after you improved.
I'm happy to hear you're doing better.....
Please remember that as soon as you start to feel any rectal discomfort or have any increase of some symptoms that are continual but not "obvious" in the familiar diarrhea/bleeding stuff...to start the rectal meds.
You might even benefit to be using them as maintenance rather than only being on the Aza......
*Heather* Status..Asacol 6 (3 twice daily); enemas every 4th night
~diagnosed January 1989 UC (proctosigmoiditis)
~Bentylol (dicyclomine) 20mg as needed
~Probiotics....(Natural Factors Protec 2 or 3 + 1 or 2 Primadophilus Reuteri Pearls @ bedtime
~multi-digestive enzymes as needed
~Ranitidine,Pariet (reflux); Effexor XR 75mg(depression); Pulmicort/Airomir (asthma)
~URSO for PSC (or PBC) 500mg X 2 daily (LFTs back to NORMAL!!)
My doc's logic.. "TREAT (FROM)BOTH ENDS" worth it !!!