Took 1 Myrbetriq, Currently Getting On Citalopram And Using Lorazapam

Took 1 myrbetriq, currently getting on citalopram and using lorazapam to do it. Had frequent urination as side effect from citalopram. Another doc besides my psychiatrist, gave me myrbetriq, didn't believe it was side effect. I have interstitial cystitis as well. Gave my myrbetriq, feeling weird today, seems to be upping my anxiety from citalopram, but its helping urination problem. Read it can interfere with metabolize of citalopram. Not going to take anymore. Should I be worried and how long for it to go away?