I do not take this drug because I have narrow angle glaucoma. However, I have read about it and remember reading you should not stop it cold turkey because of the effect it may have on your nervous system. There are suggestion about weaning off that is dependent on the amount you take and how long you've been on it.

A month is not that long, and 25mg seems like a low dosage but I don't know if it's ok to just stop. Perhaps someone else can weigh in or you can call your druggist and ask that question.