Hi …. I've been taking Effexor for about 2 years now, and I'm usually very conscientious about taking all my meds. daily. Well, last Saturday I ran out, and because of the date of the month, I had only $1.00. I have not had any since last Saturday. Today was the first day I noticed anything at all ….. I felt dizzy and didn't feel I should be driving anywhere. My dear daughter went and picked them up for me, so about an hour ago I took one. I'm wondering why I didn't notice anything sooner ….. I sure expected to.