Mirtazapine

Should I have much of a problem stopping Mirtazapine 15mg after less than One month on them?

Need I taper or will dropping to 7.5 for one week be enough?

i have just swapped from mirtazipine to citalopram as it didnt agree with me.. dr said 1 week on 7.5 then following week take 10mg citalopram i had really bad withdrawls and i was only on it 8 weeks it could have been swapping the medication to another aswell x